Water is a...? Mcqs

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Latest MCQs

Water is a...?

(A) Compound
(B) Mixture

(C) Solution
(D) Element

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Source: This question is taken from the Everyday Science

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Detergents dissolved in water help in cleaning clothes by_________...?

(A) Increasing the temperature of water
(B) Reacting chemically with dirt

(C) Reducing the surface tension of water
(D) Dissolving dirt

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Source: This question is taken from the Everyday Science

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The quantity of matter in an object is its ________...?

(A) Force
(B) Mass

(C) Weight
(D) None of these

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Which scientist is known as modern father of Astronomy ...?

(A) Einstein
(B) Newton

(C) Copernicus
(D) Archimedes

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What are considered the building blocks of matter...?

(A) Molecules
(B) Protons

(C) Elements
(D) Atoms

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Water present in watermelon...?

(A) 92%
(B) 93%

(C) 94%
(D) 95%

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Source: This question is taken from the Everyday Science

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Insects group of animals is characterized by...?

(A) Jointed legs & wings
(B) Segmented body & blood feeding

(C) Egg-laying & nectar feeding
(D) All of these

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Source: This question is taken from the Everyday Science

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A thick cloud of water droplets on the earth’s surface is called...?

(A) Dew
(B) Fog

(C) Frost
(D) Rain

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Source: This question is taken from the Everyday Science

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Which one of the following forms weak electrolyte solution with water...?

(A) CH₃COOH
(B) H₂SO₄

(C) NaCl
(D) None of these

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Which of the following is not a water soluble vitamin...?

(A) Tocopherol
(B) Pyridoxine

(C) Pantothenic acid
(D) Niacin

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Heating element of an electric heater is made up of___________...?

(A) Tungsten
(B) Graphite

(C) Chromium
(D) Nichrome

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Water is 50 times more viscous than ____________ ...?

(A) Oil
(B) Alcohol

(C) Gases
(D) Solid

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Permanent hardness of water can be removed by adding __________...?

(A) Chlorine
(B) Washing soda

(C) Bleaching powder
(D) None of these

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Freezing point of water at Fahrenheit Scale is...?

(A) 0 °F
(B) 212 °F

(C) 32 °F
(D) -32 °F

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Source: This question is taken from the Everyday Science

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What is the name of bacteria that causes Lyme Disease....?

(A) Escherichia Coli
(B) Staphylococus aureus

(C) Borrelia burgdorferi
(D) None of these

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Source: This question is taken from the Everyday Science

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Which of the following is not a characteristic of a wave...?

(A) An amplitude
(B) Period

(C) Mass
(D) Velocity

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How much percentage (%) of the Earth's Surface is covered with water...?

(A) 70%
(B) 60%

(C) 90%
(D) 75%

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Which of the following is not a solid sublime material...?

(A) Glucose
(B) Sodium Chloride

(C) Iodine
(D) Camphor

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In plants, water and minerals are transported from roots to the leaves by ____...?

(A) Phloem
(B) Xylem

(C) Stomata
(D) Cambium

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Source: This question is taken from the Everyday Science

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Scalding with steam is more severe than scalding by boiling water because_______...?

(A) Steam can penetrate the skin
(B) Steam is at a higher temperature

(C) Steam contains more energy than boiling water
(D) Steam is at a higher pressure

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The Percentage of Water used for Drinking in the world is...?

(A) 1%
(B) 10%

(C) 3%
(D) 5%

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Water has been discovered on which potentially habitable super-Earth ...?

(A) K2-14d
(B) K2-15c

(C) K2-13a
(D) K2-18b

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Rainbow is seen after rain because of hanging molecules of water which act as __________...?

(A) Lens
(B) Prism

(C) Mirror
(D) Slabs

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At which temperature does bacteria die...?

(A) 102F
(B) 106F

(C) 149F
(D) None of These

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Sugar dissolution in water, actually represents solute and solvent combination of _____...?

(A) Solid solid solution
(B) Liquid liquid solution

(C) Gas liquid solution
(D) Solid liquid solution

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A region of space where matter has collapsed in on itself is called a...?

(A) White Dwarf
(B) Wormhole

(C) Black Hole
(D) Neutron Star

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Who is Considered as Father of Botany...?

(A) Aristotle
(B) Gregor Joghn Mandle

(C) Theophrastus
(D) Corlous Linnaeous

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Lead ball falls through water more slowly than through air because __________...?

(A) The value of ‘g’ is less in water
(B) Density of air is less than that of water

(C) Of the viscous force in water
(D) Of The surface tension of water

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Average salinity or ratio of salt as per kilogram of water of ocean is__________...?

(A) 35 grams
(B) 55 grams

(C) 32 grams
(D) 42 grams

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P-waves is a term associated with__________...?

(A) Earthquakes
(B) Oceans

(C) Wind
(D) Rivers

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The bodyguard of the Earth is __________ that save the Earth from many Comets and Asteroids....?

(A) Mars
(B) Saturn

(C) Uranus
(D) Jupiter

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Transportation of water takes place through continuous tubes in roots, stem and leaves are called as...?

(A) Xylem
(B) Phloem

(C) Stomata
(D) Cambium

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Source: This question is taken from the Everyday Science

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Which of the following remains suspended to form sand and water mixture...?

(A) Gas
(B) Plasma

(C) Liquid
(D) Solid

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Asteroids are made mostly of...?

(A) Rock, metal, ice and dust
(B) Rock and metal

(C) Metal and gas
(D) Metal, gas and rock

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About 50% of the Earth’s crust, including the waters on the Earth and atmosphere, is...?

(A) Oxygen
(B) Cabon Dioxide

(C) Silicon
(D) Clay

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Air, water, sun, land, rocks and light etc is/are an examples of...?

(A) Non-Living Components
(B) Abiotic Factors

(C) Biotic Factors
(D) Both A and B

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Ten identical steel balls, each with a mass of 27 g, are immersed in a measuring cylinder initially containing a certain volume of water. The water level rises by 50 cm³ after immersing the balls. What is the density of the steel...?

(A) 0.90 gm/cm^3
(B) 8.1 gm/cm^3

(C) 9.0 gm/cm^3
(D) 13.5 gm/cm^3

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“Father of Optics” is the title given to__________...?

(A) Ibn-al-Haitham
(B) Ibn-e-Sina

(C) Al-Kandi
(D) Al-Biruni

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Which of the followings planet can float on water...?

(A) Saturn
(B) Mars

(C) Venus
(D) None

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The products of the reaction between carbon dioxide and water are ______...?

(A) Glucose (C6H12O6) and Nitrogen (N2)
(B) Glucose (C6H12O6) and Oxygen (O2)

(C) Starch (C6H10O5) and Water (H2O)
(D) Cellulose (C6H10O5) and Carbon Monoxide (CO)

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Nucleus is responsible for cell division because it contains nuclear material called...?

(A) Mitochondria
(B) Ribosomes

(C) Lysosomes
(D) Chromosomes

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Running water is required for breeding of ______...?

(A) Grass crap
(B) Silver fish

(C) Common crap
(D) Tilapia

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Who is the Father of Genetics...?

(A) Gregor Mendel
(B) Alexendar

(C) Darewin
(D) Louis pasture

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Rate of evaporation of petrol is greater than that of water at room temperature because:...?

(A) petrol molecules do not have any hydrogen bond
(B) petrol is an organic compound

(C) water molecules have small size
(D) petrol molecules have greater size

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Lemon dissolution in water actually represents solute and solvent combination of ______...?

(A) Gas-liquid solution
(B) Liquid-liquid solution

(C) Solid-liquid solution
(D) Solid-solid solution

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Which of the following is not a characteristic of a Dicot Plants...?

(A) Its leaves have parallel venation
(B) Its leaves have netted venation

(C) Its seed consist of two cotyledon
(D) Its flowers have four or multiple of four floral leaves

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Honey contain glucose and fructose along with some other ingredients, it has greater viscosity due to____________...?

(A) hydrogen bonding
(B) irregular shape of the molecules

(C) irregular shape of the molecules and strong inter-molecular forces
(D) greater molecular size

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Water soluble vitamins are released by__________...?

(A) Sweat
(B) Tears

(C) Injections
(D) Urine

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Sea water (Salt water) freezes at ...?

(A) Same temperature as fresh water.
(B) Slightly higher temperatures than fresh water.

(C) Slightly higher temperature than fresh water.
(D) Sea water does not freeze

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Which of the following is used in water purification...?

(A) Reverse Osmosis
(B) Osmosis

(C) Cytolysis
(D) Turgor Pressure

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Which animal can live longest without water...?

(A) Elephant
(B) Cat

(C) Rat
(D) Camel

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A fresh egg when placed in salt water will __________ ...?

(A) sink and go to the bottom
(B) sink but will not go to the bottom

(C) Float
(D) Burst

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Which dissolves in water to form salt and water mixture...?

(A) Gas
(B) Liquid

(C) Solid
(D) None

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Solid wastes that are not easily decomposed by decomposers are called...?

(A) Biodegradable
(B) Non-biodegradable

(C) Both A and B
(D) None

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The amount of solid waste or concentration of gases other than oxygen increase in atmosphere is called...?

(A) Air pollution
(B) Ozone depletion

(C) Acid rain
(D) Greenhouse effect

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Water vapour beyond the dew point result in_________...?

(A) Precipitation
(B) Hailstorm

(C) Condensation
(D) Formation of ice

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All of these are benefits of bacteria except ______...?

(A) Decomposition
(B) Oxygen Production

(C) Nitrogen Fixation
(D) None of these

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The additional circular small piece of DNA in bacterial cell is called ____...?

(A) Plasmids
(B) Replica

(C) Template
(D) Clone

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Disolved oxygen (DO) in water should be...?

(A) 400 to 800 ppm
(B) 4000 to 8000 ppm

(C) 0.4 to 0.5 ppm
(D) 4 to 5 ppm

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If both the parents donate same factors of a character is called _____...?

(A) Homologous
(B) Heterologous

(C) Homozygous
(D) Heterozygous

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Which water will freeze first...?

(A) Hot
(B) Cold

(C) Both
(D) None

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The chemical material of a chromosome is called _____...?

(A) Chromatin
(B) Chromeres

(C) Chromonema
(D) Chromatid

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The soil maturity color of northeastern areas is ______...?

(A) Grey
(B) Reddish

(C) Dark Brown
(D) None of these

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A telescope is an instrument that gathers _______ from distant sources....?

(A) Sound
(B) Light

(C) Heat
(D) Water

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Water at 4 degrees centigrade has...?

(A) Minimum density
(B) Maximum density

(C) No density
(D) None of these

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In a solution, when water is used as a solvent that solution is called...?

(A) Saturated Solution
(B) Aqueous Solution

(C) Unsaturated Solution
(D) Concentrated Solution

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For seeing objects at the surface of water from a submarine under water, the instrument used is ________...?

(A) Periscope
(B) Telescope

(C) Kaleidoscope
(D) Spectroscope

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Name the animal which can live without water in its entire life...?

(A) Desert lizard
(B) Camel

(C) Kangaroo rat
(D) Cuttlefish

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Water vapor is ______________...?

(A) A gas
(B) A cloud droplet

(C) A rain drop
(D) A snowflake

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__________ is the atmospheric layer wherein the weather occurs....?

(A) Troposphere
(B) Stratosphere

(C) Mesosphere
(D) Thermosphere

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When sugar is added to water, its boiling point:__________...?

(A) Increase
(B) Decrease

(C) Remain unchanged
(D) None of the above

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When the angle of refraction is 90° and the refractive index for water is 1. 33, the critical angle is ______...?

(A) 48.8°
(B) 50.0°

(C) 49.1°
(D) 51.0°

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Animal and Plant bodies contain ________ of water....?

(A) 75%
(B) 72%

(C) 70%
(D) 73%

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Carbon dioxide dissolution in water, actually represents solute and solvent combination of _____...?

(A) Liquid-liquid solution
(B) Solid-liquid solution

(C) Gas-liquid solution
(D) Solid-solid solution

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Source: This question is taken from the Everyday Science

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In a typical H-R diagram, stars are graphed by these two characteristics:...?

(A) Temperature and luminosity
(B) Luminosity and distance

(C) Distance and temperature
(D) Size and distance

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What happens when you put sand, salt and sawdust in glass of water...?

(A) Salt has dissolved in water
(B) Sand sank to the bottom

(C) Sawdust floated on the top
(D) All of these

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Sounds travel faster through solids than _______...?

(A) Liquid
(B) Gases

(C) Solids
(D) Both A and B

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Louder sound is characterized by which of the following...?

(A) High Frequency
(B) Low Frequency

(C) High Amplitude
(D) Low Amplitude

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Which of the following is not a magnetic material...?

(A) Steel
(B) Aluminum

(C) Cobalt
(D) None

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Who is called father of antiseptic...?

(A) Alexander fleming
(B) Edward Jenner

(C) Lister
(D) Oswald Schmiedeberg

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Solid wastes that are easily decompose by decomposers are called...?

(A) Biodegradable
(B) Non-biodegradable

(C) Both A and B
(D) None

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Underground water and the water on the earth’s surface is called ...?

(A) Mezosphere
(B) Ionosphere

(C) Hydrosphere
(D) None of these

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The matter of our sun is in ________ state...?

(A) Liquid
(B) Gas

(C) Solid
(D) Plasma

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Which type of wastes are classified as Non-biodegradable waste...?

(A) Waste from the plastic industry
(B) Vegetable waste from farms

(C) Kitchen waste from home
(D) None

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A change that alters the composition of a substances is known as ____...?

(A) Physical Change
(B) Nuclear Change

(C) Chemical Change
(D) Biological Change

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Which type of wastes are classified as Biodegradable waste...?

(A) Waste from plastic industries
(B) Vegetables waste from farms

(C) Wasted water from homes
(D) None

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Which is a water purification technology that uses a semipermeable membrane to remove ions, molecules and larger particles from drinking water...?

(A) Filtration
(B) Reverse Osmosis (RO)

(C) Sedimentation
(D) Distillation

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Splitting of water in presence of light called...?

(A) Hydrolysis
(B) Glycolysis

(C) Photolysis
(D) None of these

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The world's most consumed drink, after water is made from ____ plant....?

(A) Camellia sinensis
(B) Coffee arabica

(C) Punica granatum
(D) Mangifera indica

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One of the following is a water soluble vitamin...?

(A) Vitamin A
(B) Vitamin D

(C) Vitamin K
(D) None

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Which of the following flower is called Queen of Water...?

(A) Rose
(B) Lilly

(C) Rafflesia
(D) Tulip

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A solid is a state of matter _____...?

(A) Definite volume and indefinite shape
(B) Indefinite volume and definite shape

(C) Definite volume and definite shape
(D) Indefinite volume and indefinite shape

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Which of the following processes is used in water purification...?

(A) Reverse Osmosis
(B) Osmosis

(C) Cytolysis
(D) Turgor Pressure

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Plant cell loses water and cytoplasm shrinks in a process called...?

(A) Osmosis
(B) Deplasmolysis

(C) Cytolysis
(D) Plasmolysis

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Which planet of our solar system is name after a female...?

(A) Uranus
(B) Saturn

(C) Venus
(D) Mercury

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Which of the following pollutants in water causes “Minamata disease...?

(A) Methyl Mercury
(B) Lead

(C) Salmonella
(D) Perchlorate

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The beautiful color patterns exhibited by a peacock in its tail feathers are due to ...?

(A) Selective absorption of light
(B) Selective re ection of light

(C) Sinterference of light
(D) Natural colour pattern of feathers

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The way by which gene transmits characters from parents to offspring is _____...?

(A) Genetics
(B) Inheritance

(C) Heredity
(D) Allele

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Sound travel faster in solid as compare to gases because of ______...?

(A) Gas molecules are packed loosely
(B) Sound does not travel faster through a solid than a gas

(C) Solid molecules are packed tightly
(D) Gas molecules move faster

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Which of the following are non-biodegradable materials ______...?

(A) Dead Animals
(B) Plastics

(C) Bread
(D) None of these

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State of matter that has no fixed shape and no fixed volume is called...?

(A) Liquid
(B) Solid

(C) Gas
(D) None

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Oil rises in a wick of oil lamp on account of a property of matter is called...?

(A) Angle of projection
(B) Determines

(C) Capillary action
(D) Refraction of light

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Movement of water molecules from the area of higher water potential to the area of lower water potential called...?

(A) Diffusion
(B) Osmosis

(C) Active transport
(D) Water potential

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Living organisms which derive their food from dead and decaying organic materials called...?

(A) Saprotrophs
(B) Parasites

(C) Predators
(D) Producers

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Water has high density and minimum volume at__________...?

(A) 0°C
(B) 4°C

(C) 100°C
(D) None of these

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The light rays used for eliminating bacteria...?

(A) X-rays
(B) infrared rays

(C) microwave radiation
(D) ultra-violet radiation

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How dark matter is detected...?

(A) Dark matter is detected through its absorption effects
(B) Dark matter is detected through its gravitational effects on visible matter

(C) Dark matter is detected through its absorption and gravitational effects
(D) Dark matter cannot be detected

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Loss of internal water of plant in the form of vapours from aerial parts of plants is called...?

(A) Evaporation
(B) Respiration

(C) Transpiration
(D) Photosynthesis

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Which of the following is/are characteristics of fish...?

(A) Lives in water & cold-blooded
(B) Fins and scales

(C) Lay eggs in water
(D) Breathes with gills

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In the Centigrade scale, the freezing point of water is _______ and the boiling point of water is ________...?

(A) 0°C, 50°C
(B) 10°C, 100°C

(C) 0°C, 100°C
(D) 5°C, 90°C

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Characteristic odour of garlic is due to...?

(A) A fluorine compoune
(B) A sulphur compound

(C) A chlorine compound
(D) None of these

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Which mineral plays an important role in the distribution of water in the body...?

(A) Calcium
(B) Magnesium

(C) Iodine
(D) Sodium

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Which gland in the human body is called the master gland...?

(A) Pancreas
(B) Thyroid

(C) Pituitary
(D) Spleen

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Energy possessed by water in a dam is ...?

(A) Electrical energy
(B) Mechanical energy

(C) Kinetic energy
(D) Potential energy

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Which is not a biodegradable waste...?

(A) Vegetable peeling
(B) Plastic bottles

(C) Paper
(D) None

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In which state of matter, the particles have no regular pattern, have large empty spaces...?

(A) Solid
(B) Liquid

(C) Gas
(D) None

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The cow’s milk contains how much amount of water in terms of percentage...?

(A) 60%
(B) 65%

(C) 72%
(D) 80%

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Which Planet is known as Watery Planet...?

(A) Earth
(B) Mars

(C) Jupiter
(D) Mercury

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Which of the following material is more elastic...?

(A) Rubber
(B) Glass

(C) Steel
(D) Wood

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The water has minimum density at _____...?

(A) O°C
(B) 2°C

(C) 3°C
(D) 4°C

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Plastic is made of materials including _____...?

(A) Recycled Plastic
(B) Rocks & Sand

(C) Coal, Oil, Natural Gas
(D) None of the these

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Which of the following is the purpose of connecting a battery in an electric circuit...?

(A) To maintain resistance across the conductor
(B) To vary resistance across the conductors

(C) To maintain constant potential difference across the conductor
(D) To maintain varying potential difference across the conductor

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In the bacterial cell, the DNA is found floating in the ____...?

(A) Mitochondria
(B) Nucleus

(C) Cell Wall
(D) Cytoplasm

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Earthquake waves travel faster in __________...?

(A) Water
(B) Flexibl rock

(C) Air
(D) Soil

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A liquid is a state of matter _______...?

(A) Definite volume and definite shape
(B) Indefinite volume and definite shape

(C) Definite volume and indefinite shape
(D) Indefinite volume and indefinite shape

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What percentage of plasma is composed of water...?

(A) 70%
(B) 80%

(C) 90%
(D) 92%

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Freezing point of water is__________...?

(A) 0°C
(B) -2°C

(C) -4°C
(D) None of above

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An egg sinks in soft water but floats in a concentrated solution of salt because...?

(A) egg absorbs salt from the solution and expands
(B) albumin dissolves in salt solution and egg becomes lighter

(C) the density of salt solution exceeds the density of eggs
(D) water has high surface tension

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Which method can be used to get drinking water from sea water...?

(A) Filtration
(B) Sublimation

(C) Crystallization
(D) Distillation

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The following are the methods to purify water except...?

(A) Filtration
(B) Distillation

(C) Crystallization
(D) Chlorination

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Water enters the root hair by ____...?

(A) Diffusion
(B) Osmosis

(C) Active Transport
(D) Transpiration

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Why the needle of iron swims on water surface when it is kept gently ...?

(A) It will remain under the water, when it will displace more water than its weight
(B) the density of needle is less than that of water

(C) due to surface tension
(D) due to its shape

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The variety of coal in which the deposit contains recognizable traces of the original plant material is____________...?

(A) bitumen
(B) anthracite

(C) lignite
(D) peat

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What is the percentage of water present in our brain...?

(A) 85%
(B) 95%

(C) 97%
(D) 73%

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Dielectric constant of water is...?

(A) 60
(B) 70

(C) 80
(D) None of these

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What is the number of known crystalline phases of water ________...?

(A) 4
(B) 8

(C) 17
(D) 18

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A _____ is used in submarines to monitor the surface of water....?

(A) Periscope
(B) Telescope

(C) Kaleidoscope
(D) Binoculars

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A _______ is an object with at least one slanting side ending in a sharp edge, which cuts material apart....?

(A) Pulley
(B) Inclined Plane

(C) Lever
(D) Wedge

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Which is not a cause of water pollution...?

(A) Gases from household materials
(B) Sewage water from homes

(C) Untreated water from industries
(D) Water runoff from agriculture

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Most asteroids orbit the sun in a region called the asteroid belt between...?

(A) Mars and Jupiter
(B) Jupiter and Saturn

(C) Mercury and Neptune
(D) Venus and Uranus

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Which gas is used in preparation of Soda water...?

(A) Ammonia
(B) Hydrogen

(C) Nitrogen
(D) Carbon Dioxide

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Law of conservation of momentum defines that the total momentum of a system of two bodies before and after collision ______...?

(A) Remains constant
(B) Retains more momentum

(C) Losses some momentum
(D) None of the above is true

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For the generation of biogas, the materials commonly used are__________...?

(A) Animal wastes
(B) Forest residues

(C) Aquatic plants
(D) None of these

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All matter is made of ___________...?

(A) Air
(B) Water

(C) Vibrations
(D) Atoms

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Which of the following is the study of micro- organisms, mostly viruses and single called organisms such as bacteria, yeasts and protozoa ...?

(A) Microbiology
(B) Micrology

(C) Histopathology
(D) Tavelogy

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Butter paper is _________ material because it scatters light....?

(A) Transparent
(B) Translucent

(C) Opaque
(D) None

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Permanent hardness of water is due to the presence of __________...?

(A) Sodium bicarbonate
(B) Calcium sulfate

(C) Calcium bicarbonate
(D) None of these

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The molecular mass of Water molecule is __________...?

(A) 16amu
(B) 17amu

(C) 18amu
(D) 20amu

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Which of the following is not a waterborne disease...?

(A) Cholera
(B) Amoebiasis

(C) Typhoid
(D) Influenza

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The Analytical Chemistry deals with instruments and methods to ______ identify and quantify the matter....?

(A) Mix
(B) Separate

(C) Differentiate
(D) Manipulate

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Cobalt is a material which is ...?

(A) Strongly attracted by a magnet
(B) Not attracted by a magnet

(C) not a magnet
(D) Weakly attracted by a magnet

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How much percentage of water on the earth is freshwater...?

(A) 2.5%
(B) 3.5%

(C) 4.5%
(D) 5.5%

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Which of the following is/are the characteristics of reptiles...?

(A) Dry scaly skin
(B) Cold-blooded

(C) Lay eggs on land
(D) Lives in/on water/land

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A burning candle is an example of ______ state of matter....?

(A) Gas
(B) Liquid

(C) Solid
(D) All three

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An iceberg is floating in sea. How much of its mass will remain above the surface of water...?

(A) One tenth
(B) One fifth

(C) One fourth
(D) One third

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Organisms that eat all the dead and waste products and returning useful elements to soil and environment are known as...?

(A) Decomposers
(B) Producers

(C) Consumers
(D) None

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Density of Water is_________...?

(A) 897 kg/m³
(B) 997 kg/m³

(C) 1000 kg/m³
(D) 1025 kg/m³

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The temperature at which water boils depends mainly on ____________...?

(A) Air temperature
(B) Relative humidity

(C) Air pressure
(D) Air density

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The amount of space a material object occupies is called its...?

(A) Volume
(B) Matter

(C) Mass
(D) Force

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The process of splitting water molecules in the presence of light energy is called_________...?

(A) Electrolysis
(B) Photolysis

(C) Radiolysis
(D) Thermolysis

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Which of the following are lightest form of matter...?

(A) Solid
(B) Liquid

(C) Gases
(D) Plasma

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Removal of extra liquid water is _____...?

(A) Exudation
(B) Guttation

(C) Respiration
(D) Transpiration

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Sound travels about ___________times faster in water than in air....?

(A) 2
(B) 3

(C) 4
(D) 5

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State of matter that has fixed shape and fixed volume is called...?

(A) Solid
(B) Liquid

(C) Gas
(D) None

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The process of converting wet waste to manure is___________...?

(A) Metabolism
(B) Conservation

(C) Incineration
(D) Composting

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Where do most of Asteroids lie...?

(A) In asteroid belt between the orbits of Mars and Jupiter
(B) In asteroid belt between the orbits of Mars and Venus

(C) In asteroid belt between the orbits of Jupiter and Venus
(D) Everywhere in the sky

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The carboxylate end of the soap molecule that is attracted to water is called...?

(A) Hydrophobic end
(B) End point

(C) Hydrophilic end
(D) None

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Water soluble Vitamins are _________...?

(A) A & D vitamins
(B) B & C vitamins

(C) A & K vitamins
(D) B & K vitamins

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The process of removing water in the form of vapour in the form of leaves is called...?

(A) Nutrition
(B) respiration

(C) perspiration
(D) transpiration

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The gas heater gives us heat by __________...?

(A) Radiation
(B) Conduction

(C) Convection
(D) Environmental pressure

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Which of the following floats on water to form sawdust and water mixture...?

(A) Solid
(B) Liquid

(C) Gas
(D) None

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If pH value is greater than 7, then solution is ______...?

(A) Acidic
(B) Basic

(C) Amphoteric
(D) Neutral

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Materials for rain-proof coats and tents owe their water proof properties to________...?

(A) Surface tension
(B) Viscosity

(C) Specific gravity
(D) Elasticity

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In bacteria mesosomes take the place of which one of the following...?

(A) Ribosome
(B) Mitochondria

(C) Golgi bodies
(D) None of these

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On heating the particles in the ice cubes will gain energy, move faster and change to liquid water. This is called...?

(A) Freezing
(B) Melting

(C) Boiling
(D) Condensation

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Permanent hardness of water may be removed by the addition of___________...?

(A) Sodium Carbonate
(B) Alum

(C) Potassium Permanganate
(D) Lime

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How much percentage of water on the earth is saltwater...?

(A) 90%
(B) 95%

(C) 98.5%
(D) 97.5%

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The salinity of sea water is determined by the amount of common salt (Sodium Chloride) in __________ of sea water....?

(A) 1 gram
(B) 10 grams

(C) 1 kg
(D) 10 kg

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Which of the following is not a characteristic of a Monocot Plants...?

(A) Its leaves have parallel venation
(B) Its seed consist of one cotyledon

(C) Its flowers have three or multiple of three floral leaves
(D) Its flowers have four or multiple of four floral leaves

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Water waves pass from deep into the shallow region and are then refracted. The characteristics of waves which will remain constant is _____...?

(A) Direction
(B) Frequency

(C) Speed
(D) Wavelength

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The permanent hardness of water is due to presence ______...?

(A) MgSO4
(B) Mg(HCO3)₂

(C) CA(HCO3)2
(D) All of these

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Which solution contain more water...?

(A) 1.0M
(B) 0.75M

(C) 0.5M
(D) 0.25M

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Which one of the following tablets are used for water purification...?

(A) Aspirin
(B) Antibiotic

(C) Vitamin C
(D) Halazone

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A bacterium that lives in the intestines of human beings and animals is called...?

(A) Lactobacillus acidophilus
(B) Escherichia coli

(C) Staphylococcus aureus
(D) Bacillus subtilis

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All are characters of enzymes except...?

(A) Enzyme speed up a biochemical reaction
(B) Enzymes are sensitive to minor change in pH

(C) Enzyme activity enhanced by inhibitors
(D) Enzyme portion where substrate attach called active site

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Which of the following vitamins is synthesized in the body by intestinal bacteria_______...?

(A) Vitamins B1
(B) Vitamins B12

(C) Vitamins E
(D) Vitamins K

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What is the percentage of salt water on earth surface...?

(A) 93%
(B) 95%

(C) 97%
(D) 76%

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About ______ of the body weight of a mammal is water....?

(A) 70%
(B) 75%

(C) 80%
(D) 90%

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Which of the following phenomena occur when a small amount of acid is added to water...?

(A) Precipitation and Neutralization
(B) Evaporation and Condensation

(C) Sublimation and Deposition
(D) Dilution and Ionisation

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Swimmers make their bodies streamlined to ________ friction under water....?

(A) Increase
(B) Reduce

(C) Maintain
(D) Ignore

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Which one of the following is biodegradable material...?

(A) Plastic
(B) Styrofoam

(C) Glass
(D) Fruits

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What process takes place between particles of ink and particles of water when a drop of ink is added to water...?

(A) Osmosis
(B) Diffusion

(C) Sedimentation
(D) Decomposition

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What is a distinguishing character of arachnids...?

(A) 6 legs
(B) 8 legs

(C) Antennae
(D) Wings

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In blood, the percentage of water is___________...?

(A) 75%
(B) 85%

(C) 90%
(D) 95%

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Which metal is extracted from sea water...?

(A) Potassium
(B) Magnesium

(C) Aluminum
(D) None of these

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A term biotype means ___________...?

(A) all individuals having same phenotype
(B) all individuals having same genotype

(C) all individual with different phenotype
(D) all individuals with different genotype

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The volume of air remaining in the lungs even after forcible expiration is:...?

(A) total volume
(B) tidal volume

(C) residual volume
(D) none of the above

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Triple point of water is _________...?

(A) 271 K
(B) 272.2 K

(C) 273.16 K
(D) None of these

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The primary function of the feathers in birds is to _________...?

(A) Provide insulation for preserving body heat
(B) Provide striking surface to the wings for flying

(C) Make the body surface waterproof
(D) impart coloration for species as well as sex recognition

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Salt dissolution in water, actually represents solute and solvent combination of _____...?

(A) Solid liquid solution
(B) Solid solid solution

(C) Liquid liquid solution
(D) Gas liquid solution

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When parallel rays of light fall onto rough surface they are reflected in different directions and are scattered is called _____...?

(A) Regular Reflection
(B) Specular Reflection

(C) Diffused Reflection
(D) None

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_______ bacterial disease affects Eye...?

(A) Trachoma
(B) Rickets

(C) Osteoporosis
(D) Gum disease

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Which of the following is/are characteristics of amphibians...?

(A) Lives on/in land/water
(B) Cold-blooded

(C) Moist skin
(D) Both A and B

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The potential of pure water is ____...?

(A) Zero
(B) 1

(C) 2
(D) 3

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A body of land that is surrounded by water on three sides is called________...?

(A) Strait
(B) Bay

(C) Peninsula
(D) Gulf

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Water has maximum density at____________...?

(A) 0°C
(B) 4°C

(C) 4° K
(D) 4.8°C

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What regulates the flow of water through the xylem...?

(A) Passive transport by the endodermis
(B) The number of companion cells in the phloem

(C) The evaporation of water from the leaves
(D) Active transport by sieve-tube membrane

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We could destroy the Dengue Mosquito by introducing a special Mosquito Eating ______in the water bodies....?

(A) Fish
(B) Meat

(C) Chicken
(D) None

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Heavy mechanical complex use a large amount of water for_________...?

(A) Cooling
(B) Freezing

(C) Washing
(D) Mixing

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Boiling point of pure water is __________...?

(A) 90’C
(B) 97’C

(C) 100’C
(D) None of these

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From among the following, which material is insoluble in water...?

(A) Sand
(B) Sugar

(C) Glucose
(D) Salt

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Who invented the first battery...?

(A) Alessandro volta
(B) Tim Berner

(C) Rob Stothard
(D) Georges Leclanche

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Techniques for manipulation of gene to achieve desirable characters are called...?

(A) Biotechnology
(B) Biochemistry

(C) Genomics
(D) Gene Therapy

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For water purification, we use...?

(A) Chlorine
(B) Bromine

(C) Plants
(D) Young man

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The container use to grow bacteria on large scale are called...?

(A) Chillers
(B) Sterilizers

(C) Fermenters
(D) Ferments

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Milk contains water...?

(A) 70%
(B) 75%

(C) 87%
(D) 90%

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What percentage of earth’s water supply is fresh water___________...?

(A) 3%
(B) 5%

(C) 21%
(D) None of these

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The most abundant element in sea water is...?

(A) Chlorine
(B) Sodium

(C) Sulfur
(D) Magnesium

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The evaporation of water from aerial parts of the plant especially through leaves is called...?

(A) Translocation
(B) Photosynthesis

(C) Respiration
(D) Transpiration

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Hailey’s comet is visible after every_________...?

(A) 84 years
(B) 76 years

(C) 1000 years
(D) 365 years

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Which stone floats on water...?

(A) Pumice stone
(B) Lime stone

(C) Basalt stone
(D) Quartzite stone

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When water vapours are cooled, energy will be released and gaseous state will convert into liquid water. This process is known as...?

(A) Evaporation
(B) Condensation

(C) Melting
(D) Freezing

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Matter exists in______ states....?

(A) One
(B) Three

(C) Five
(D) None of these

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There are many different types of frozen water on Earth. Collectively, they are known as the: ___________...?

(A) Hydrosphere
(B) Cryosphere

(C) Frigid Zone
(D) Biosphere

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In Fahrenheit scale the boiling point of water is ______...?

(A) 208°F
(B) 210°F

(C) 212°F
(D) 214°F

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Which is used to remove dissolved physical and chemical impurities from water is called ____...?

(A) Distillation
(B) Chlorination

(C) Filtration
(D) Sedimentation

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Which salts are excessively dissolved to make temporary hard water...?

(A) CaSO4 and CaCl2
(B) KNO3 and KOH

(C) CaCO3 and Ca(OH)2
(D) Ca(HCO3)2 and Mg(HCO3)2

Comments

Source: This question is taken from the Everyday Science

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Sound travels_______ in solid materials then liquid...?

(A) Constant
(B) Slowest

(C) Fastest
(D) None of these

Comments

Source: This question is taken from the Everyday Science

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What happens when water solidifies as ice on cooling from 4°C to 0°C...?

(A) Its volume increases and density decreases
(B) Its volume increases and density increases

(C) Its volume decreases and density decreases
(D) Its volume decreases and density increases

Comments

Source: This question is taken from the Everyday Science

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The taste of water is ______...?

(A) Sour
(B) Bitter

(C) Sweet
(D) Tasteless

Comments

Source: This question is taken from the Everyday Science

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What makes dark matter invisible to telescope...?

(A) Dark matter interacts with electromagnetic force for very short duration
(B) Dark matter does not interact with electrostatic force

(C) Dark matter does not interact with electromagnetic force
(D) None of the above

Comments

Source: This question is taken from the Everyday Science

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The order of speed of the sound in different mediums from faster to slowest is ______...?

(A) Gas → Liquid → Solid
(B) Liquid → Solid → Gas

(C) Solid → Liquid → Gas
(D) Gas → Solid → Liquid

Comments

Source: This question is taken from the Everyday Science

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The gas used in a refrigerator to cool water is___________...?

(A) Nitrogen
(B) Carbon dioxide

(C) Methane
(D) Tetrafluoroethane

Comments

Source: This question is taken from the Everyday Science

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The freezing point of water is the same as its...?

(A) Melting point
(B) Boiling point

(C) Evaporation point
(D) None

Comments

Source: This question is taken from the Everyday Science

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Mammals is defined by which of the following characteristics...?

(A) Born alive
(B) Warm-blooded

(C) Milk feeding
(D) Fur/hair/skin & Spine

Comments

Source: This question is taken from the Everyday Science

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Places where the temperature of air is above freezing point of the water, the precipitation will be in the form of ________ ...?

(A) Hailstorms
(B) Thunders

(C) Rain
(D) Lightning

Comments

Source: This question is taken from the Everyday Science

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Which is the purest form of water...?

(A) Rain water
(B) Heavy water

(C) Tap water
(D) None of these

Comments

Source: This question is taken from the Everyday Science

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Chemical formula for Water is _______ ...?

(A) NaAlO2
(B) H2O

(C) Al2O3
(D) CaSiO3

Comments

Source: This question is taken from the Everyday Science

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Which vitamin is most soluble in water...?

(A) Vitamin D
(B) Vitamin B

(C) Vitamin C
(D) Both B and C

Comments

Source: This question is taken from the Everyday Science

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Which gas can turn lime water milky...?

(A) O2
(B) NO2

(C) CO2
(D) N2

Comments

Source: This question is taken from the Everyday Science

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NASA scientists have recently detected water vapor on which Jupiter’s moon...?

(A) Callisto
(B) Europa

(C) lo
(D) None

Comments

Source: This question is taken from the Everyday Science

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Substance whose atoms can be split are known as __________ materials....?

(A) Fusionable
(B) Fissionable

(C) Combustible
(D) None of these

Comments

Source: This question is taken from the Everyday Science

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If we dissolve sand into the water, then the mixture is said to be _______...?

(A) Solution
(B) Suspension

(C) Colloids
(D) Concentrated solution

Comments

Source: This question is taken from the Everyday Science

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Element extracted from Sea water...?

(A) Beryllium
(B) Magnesium

(C) Aluminium
(D) None of These

Comments

Source: This question is taken from the Everyday Science

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An undesirable change in the characteristics of air, water and land environment that is harmful to humans and living things is known as...?

(A) Pollutant
(B) Pollution

(C) Climate Change
(D) Global Warning

Comments

Source: This question is taken from the Everyday Science

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The nucleus contains a hereditary material called ____...?

(A) Mitochondria
(B) Chromosomes

(C) Ribosomes
(D) Lysosomes

Comments

Source: This question is taken from the Everyday Science

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A gas is a state of matter _______...?

(A) Definite volume and definite shape
(B) Definite volume and indefinite shape

(C) Indefinite volume and indefinite shape
(D) Indefinite volume and definite shape

Comments

Source: This question is taken from the Everyday Science

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Places where the temperature of air is below freezing point of the water, the precipitation will be in the form of __________ ...?

(A) Snow
(B) Lightning

(C) Hailstorms
(D) Thunders

Comments

Source: This question is taken from the Everyday Science

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Permanent hardness of water due to sulphate of metals can be destroyed by the use of ________ ...?

(A) Zeolites
(B) Sulphonides

(C) Lime
(D) Nitrates

Comments

Source: This question is taken from the Everyday Science

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Water is heated in a kettlE. The inside water is heated by convection. A person sitting near the fire receives heat by ________...?

(A) Conduction
(B) Convection

(C) Radiation
(D) Reflection

Comments

Source: This question is taken from the Everyday Science

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The Quantity of matter present in an object is its ________...?

(A) Density
(B) Weight

(C) Mass
(D) None of these

Comments

Source: This question is taken from the Everyday Science

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Organisms that eat all the dead and waste products of producers and consumers are called...?

(A) Producers
(B) Consumers

(C) Decomposers
(D) None

Comments

Source: This question is taken from the Everyday Science

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Almost identical eclipses occur after 18 years and 11 days. This cycle is known as__________...?

(A) Partial Eclipse cycle
(B) Total Eclipse Cycle

(C) Saros Cycle
(D) None of the above

Comments

Source: This question is taken from the Everyday Science

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Water covers __________ of the Earth’s surface...?

(A) 61%
(B) 67%

(C) 71%
(D) 76%

Comments

Source: This question is taken from the Everyday Science

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When you put a drop of ink into water, why is the colour of ink moving in the glass...?

(A) Due to motion of molecules of water
(B) Due to motion of molecules of ink

(C) Due to gravity
(D) Due to light energy

Comments

Source: This question is taken from the Everyday Science

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Which one of the following is non-biodegradable material...?

(A) Plastic
(B) Manure

(C) Wood
(D) Cotton

Comments

Source: This question is taken from the Everyday Science

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In Fahrenheit scale the freezing point of water is ______ and boiling point of water is _______ ...?

(A) 32°F, 212°F
(B) 212°F, 32°F

(C) 35°F, 210°F
(D) 210°F, 35°F

Comments

Source: This question is taken from the Everyday Science

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Material for rain-proof coats and tents owe their water proof properties to ________...?

(A) Surface tension
(B) Viscosity

(C) Specific gravity
(D) Elasticity

Comments

Source: This question is taken from the Everyday Science

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Which of the following is a ferromagnetic material ...?

(A) Tungsten
(B) Aluminium

(C) Copper
(D) Nickel

Comments

Source: This question is taken from the Everyday Science

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Which of the following organisms releases molecular oxygen into water...?

(A) E.coli
(B) Phytoplankton

(C) Amoeba
(D) Salmonella

Comments

Source: This question is taken from the Everyday Science

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Percentage of water in an apple is__________...?

(A) 84%
(B) 90%

(C) 66%
(D) None of these

Comments

Source: This question is taken from the Everyday Science

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A narrow beam of white light passes from air into the glass and is refracted. The wave characteristic remains unchanged in its ______...?

(A) Direction
(B) Speed

(C) Frequency
(D) Wavelength

Comments

Source: This question is taken from the Everyday Science

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Water is a highly effective coolant for a car engine because _________...?

(A) Water is good conductor of heat
(B) Water has very high specific heat capacity

(C) Water boils at a comparatively high temperature
(D) Evaporation of water produces lot of cooling

Comments

Source: This question is taken from the Everyday Science

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Father of Homeopathy is__________...?

(A) Samuel Hahnemann
(B) Robert Dover

(C) Hakeem Suleman
(D) Dr Anwaar Khan

Comments

Source: This question is taken from the Everyday Science

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Most soluble in water is:__________...?

(A) Camphor
(B) Sulphur

(C) Common salt
(D) Sugar

Comments

Source: This question is taken from the Everyday Science

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Who is considered the “father of psychoanalysis...?

(A) Sigmund Frend
(B) Galileo

(C) Aristotle
(D) Fabrica

Comments

Source: This question is taken from the Everyday Science

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The study of the weather is called____________...?

(A) Meteorology
(B) Weatherology

(C) Ecology
(D) Geology

Comments

Source: This question is taken from the Everyday Science

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The materials required for respiration are ______...?

(A) Glucose (C6H12O6) and Oxygen (O2)
(B) Glucose (C6H12O6) and Water (H2O)

(C) Carbon Dioxide (CO2) and Water (H2O)
(D) Oxygen (O2) and Light Energy

Comments

Source: This question is taken from the Everyday Science

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Water vapour turns into clouds in the atmosphere when:...?

(A) It rains
(B) The temperature rise

(C) Dew point is reached
(D) Evaporation takes place

Comments

Source: This question is taken from the Everyday Science

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What pigment is responsible for the red color inside a watermelon...?

(A) Chlorophyll
(B) Beta-carotene

(C) Lycopene
(D) Anthocyanin

Comments

Source: This question is taken from the Everyday Science

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Surfactants reduce the ______ of water....?

(A) Viscosity
(B) Surface tension

(C) Boiling point
(D) Melting Point

Comments

Source: This question is taken from the Everyday Science

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During the process, more water will also evaporate and convert to a gaseous state of water called the...?

(A) Water Liquid
(B) Water Solid

(C) Water Vapour
(D) Water Ice

Comments

Source: This question is taken from the Everyday Science

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Which pigment is responsible for the red color inside a watermelon...?

(A) Lycopene
(B) Beta Carotene

(C) Alpha Carotene
(D) All of these

Comments

Source: This question is taken from the Everyday Science

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The major ingredient of leather is__________________...?

(A) Collagen
(B) Polymer

(C) Nucleic acid
(D) None of these

Comments

Source: This question is taken from the Everyday Science

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Who is the known as the father of taxonomy...?

(A) Aristotle
(B) Fransco Redi

(C) Carolus Linnaeus
(D) Rachel Carson

Comments

Source: This question is taken from the Everyday Science

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Water percentage in plasma is _____...?

(A) 80%
(B) 90%

(C) 60%
(D) 70%

Comments

Source: This question is taken from the Everyday Science

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State of matter that hast fixed volume but not fixed shape is called...?

(A) Solid
(B) Gas

(C) Liquid
(D) None

Comments

Source: This question is taken from the Everyday Science

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The hormone that increases the rate of heart beat and blood pressure after shock in a person is___________...?

(A) Adrenalin
(B) Gastrin

(C) Thyroxin
(D) Pancreatic

Comments

Source: This question is taken from the Everyday Science

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Naturally occurring enzyme used as a defense chemical by bacteria ______...?

(A) Defense protein
(B) Restriction enzyme

(C) Hydrolytic enzyme
(D) Ligase enzyme

Comments

Source: This question is taken from the Everyday Science

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The density of water is __________...?

(A) 1 g/cm3
(B) 1.5 g/cm3

(C) 2 g/cm3
(D) none of these

Comments

Source: This question is taken from the Everyday Science

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Water is a good solvent of ionic salts because:...?

(A) It has a high specific heat
(B) It has no colour

(C) It has a high dipole moment
(D) None of these

Comments

Source: This question is taken from the Everyday Science

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A method of removing suspended sand particles and insoluble physical impurities from water is known as...?

(A) Sedimentation
(B) Filtration

(C) Distillation
(D) Chlorination

Comments

Source: This question is taken from the Everyday Science

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The camel has a special water storage space in its...?

(A) Stomach
(B) Hump

(C) Liver
(D) None

Comments

Source: This question is taken from the Everyday Science

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The first and largest asteroid discovered was__________...?

(A) Pallas
(B) Juno

(C) Ceres
(D) Trojan

Comments

Source: This question is taken from the Everyday Science

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The boiling point of water on a centigrade scale is...?

(A) 80°C
(B) 90°C

(C) 100°C
(D) 10°C

Comments

Source: This question is taken from the Everyday Science

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The most suitable thermometer for measuring boiling point of water is ...?

(A) Mercury Thermometer
(B) Liquid crystal thermometer

(C) Bimetallic thermometer
(D) Alcohol thermometer

Comments

Source: This question is taken from the Everyday Science

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A group of stars in the sky that, when viewed from Earth, create an outline of some recognizable shape or pattern is called ___...?

(A) Constellation
(B) Nebula

(C) Asterism
(D) Galaxy

Comments

Source: This question is taken from the Everyday Science

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In Fahrenheit scale the freezing point of water is ______...?

(A) 30°F
(B) 32°F

(C) 34°F
(D) 100°F

Comments

Source: This question is taken from the Everyday Science

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Percentage of water in a tomato is__________...?

(A) 94%
(B) 90%

(C) 47%
(D) None of these

Comments

Source: This question is taken from the Everyday Science

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The largest artery in human body_______...?

(A) Subclavian artery
(B) Aorta

(C) Brachial artery
(D) None of these

Comments

Source: This question is taken from the Everyday Science

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If the length of a heater coil is reduced by 10% of its original length, then Power consumed by heater will...?

(A) Increase over 10%
(B) Decrease by 10%

(C) Decrease by 0.5%
(D) Increase by 0.5%

Comments

Source: This question is taken from the Everyday Science

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Water is a universal solvent for what reactions...?

(A) Chemical
(B) Biochemical

(C) Physical
(D) Nuclear

Comments

Source: This question is taken from the Everyday Science

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Less than one percent of Earth’s water is fresh water but Ocean contains what percent of the total water of planet Earth...?

(A) 99%
(B) 89%

(C) 77%
(D) 97%

Comments

Source: This question is taken from the Everyday Science

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pH value of water is _________...?

(A) 5
(B) 5-6

(C) 8.7-10.5
(D) 6.5-8.5

Comments

Source: This question is taken from the Everyday Science

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The fourth state of matter is...?

(A) Water
(B) Salts

(C) Vapours
(D) Plasma

Comments

Source: This question is taken from the Everyday Science

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Speed of sound in water at 20 °C is___________...?

(A) 1450 m/s
(B) 1474 m/s

(C) 1498 m/s
(D) 1500+ m/s

Comments

Source: This question is taken from the Everyday Science

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