Smoke is an solution of _________...? Mcqs

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Smoke is an solution of _________...?

(A) Solid in solid
(B) Solid in liquid

(C) Solid in gas
(D) Gas in gas

✅ Correct Answer: Solid in gas

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Source: This question is taken from the Everyday Science

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Hydrology is the study of ___________...?

(A) Height
(B) High temperature

(C) High Mountain
(D) Rainfall

✅ Correct Answer: Rainfall

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Proton number is denoted by symbol __________ ...?

(A) M
(B) Z

(C) P
(D) A

✅ Correct Answer: Z

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The point that lies directly above the source of an earthquake is known as _______________ ...?

(A) Earthquake Center
(B) Epicenter

(C) Gravitational Center
(D) Geological Center

✅ Correct Answer: Epicenter

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Deficiency of Vitamin-D results in __________...?

(A) night blindness
(B) rickets

(C) scurvy
(D) hair fall

✅ Correct Answer: rickets

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Deficiency of Vitamin-A results in __________...?

(A) Night blindness
(B) rickets

(C) scurvy
(D) hair fall

✅ Correct Answer: Night blindness

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Galvanised Iron sheets have a coating of____________...?

(A) Tin
(B) Silver

(C) Zinc
(D) Chromium

✅ Correct Answer: Zinc

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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

✅ Correct Answer: 1 kg

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A tight-rope walker carries a long pole which he holds across his body. The purpose of this pole is to__________...?

(A) Prop him up if he falls
(B) Spread out his weight and reduce the pressure on the rope

(C) Add extra weight to keep the rope tightly stretched
(D) To keep the Center of gravity always above vertically above the rope

✅ Correct Answer: To keep the Center of gravity always above vertically above the rope

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Among the planets of the Solar system the position of the Earth from the Sun is:_________...?

(A) Second
(B) Third

(C) Fourth
(D) Sixth

✅ Correct Answer: Third

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Diameter of Sun is_____________...?

(A) 12 Lakh kms
(B) 13 Lakh kms

(C) 14 Lakh kms
(D) 15 Lakh kms

✅ Correct Answer: 14 Lakh kms

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Earthquake waves travel faster in __________...?

(A) Water
(B) Flexibl rock

(C) Air
(D) Soil

✅ Correct Answer: Water

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Which one of the following elements the drum of a Photostat machine is made up of: _________...?

(A) Aluminium
(B) Selenium

(C) Barium
(D) None of these

✅ Correct Answer: Selenium

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Hygrometer is used for measuring the ____________...?

(A) Speed of sound
(B) Density of milk

(C) Humidity of air
(D) Specific gravity of liquids

✅ Correct Answer: Humidity of air

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The winter solstice in the southern Hemisphere occurs on __________...?

(A) 22 December
(B) 23 September

(C) 21 June
(D) 22 March

✅ Correct Answer: 21 June

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The process of sublimation _______...?

(A) A solid turns directly into a liquid
(B) A liquid turns directly into a gas

(C) A gas turns directly into a liquid
(D) A solid turns directly into a gas

✅ Correct Answer: A solid turns directly into a gas

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Solubility is usually expressed in grams of the solute dissolved in ________ gram of a solvent....?

(A) 10 grams
(B) 100 grams

(C) 500 grams
(D) 1000 grams

✅ Correct Answer: 100 grams

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Which is the most electro-negative element among the following _________...?

(A) Fluorine
(B) Bromine

(C) Sodium
(D) Oxygen

✅ Correct Answer: Fluorine

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Year is longest on : _____________...?

(A) Mercury
(B) Venus

(C) Mars
(D) The Earth

✅ Correct Answer: Venus

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Tibia is a bone found in the ____________...?

(A) Skull
(B) Arm

(C) Leg
(D) Face

✅ Correct Answer: Leg

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Selenology is the study of __________...?

(A) Stars
(B) Galaxy

(C) Moon
(D) Planets.

✅ Correct Answer: Moon

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Maxilla bones are found in___________...?

(A) Jaw
(B) Toe

(C) Ear
(D) Stomach

✅ Correct Answer: Jaw

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Saccharine is made up of __________...?

(A) Toluene
(B) Phenol

(C) Propane
(D) None of these

✅ Correct Answer: Toluene

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Winter Solstice means____________...?

(A) longest night
(B) longest day

(C) smallest night
(D) smallest day

✅ Correct Answer: longest night

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Earth rotates the sun in___________...?

(A) 23 hours 56 min 4 sec
(B) 24 hours

(C) 23 hours 57 min 9 sec
(D) Non of above

✅ Correct Answer: 23 hours 56 min 4 sec

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Accumulation of salts in kidneys results in_________...?

(A) Diabetes
(B) Hypertension

(C) Cancer
(D) Kidney Stone

✅ Correct Answer: Kidney Stone

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Enzymes are organic catalysts made up of __________...?

(A) Carbohydrates
(B) Proteins

(C) Nucleic Acid
(D) Fats

✅ Correct Answer: Proteins

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A tight-rope walker carries a long pole which he holds across his body. The purpose of this pole is to____________...?

(A) Prop him up if he falls
(B) Spread out his weight and reduce the pressure on the rope

(C) Add extra weight to keep the rope tightly stretched
(D) To keep the centre of gravity always vertically above the rope

✅ Correct Answer: To keep the centre of gravity always vertically above the rope

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When a ray of sunlight enters a dark room , its straight path become visible because of dust particles hanging in the air. It is because light is _________...?

(A) Visible
(B) Transparent

(C) Invisible
(D) opaque

✅ Correct Answer: Visible

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Mercury is also known as_________...?

(A) Shine Silver
(B) Quick Silver

(C) Slow Silver
(D) Slippery Silver

✅ Correct Answer: Quick Silver

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The Oort cloud is estimated to be about __________ AU away from the sun...?

(A) 100,000
(B) 200,000

(C) 300,000
(D) 400,000

✅ Correct Answer: 100,000

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Nail polish remover contains___________...?

(A) Acetone
(B) Benzene

(C) Acetic acid
(D) Petroleum ether

✅ Correct Answer: Acetone

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P Waves are also said to be __________ waves...?

(A) Push-pull
(B) Side-side

(C) Up-down
(D) None of the above

✅ Correct Answer: Push-pull

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A Spectroscope is used to _______...?

(A) Measure the distance of a star from Earth
(B) Identify the chemical elements present in a star

(C) Determine the temperature of a star
(D) Calculate the velocity of a star

✅ Correct Answer: Identify the chemical elements present in a star

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Blood which heart pumps to lungs is__________...?

(A) deoxygenated blood
(B) lymph fluid

(C) atria blood
(D) oxygenated blood

✅ Correct Answer: deoxygenated blood

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

(A) Precipitation
(B) Hailstorm

(C) Condensation
(D) Formation of ice

✅ Correct Answer: Condensation

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A solar eclipse occurs when _________...?

(A) Venus between Earth and sun
(B) Moon is between Earth and sun

(C) Sun is between Earth and moon
(D) Moon is between Earth and Neptune

✅ Correct Answer: Moon is between Earth and sun

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The unit of torque in International system of unit is _________...?

(A) Newton
(B) Newton-Meter

(C) Kilogram
(D) Meter

✅ Correct Answer: Newton-Meter

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Dead red blood corpuscles are stored in____________...?

(A) Liver
(B) Spleen

(C) Kidney
(D) Heart

✅ Correct Answer: Spleen

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The particles of a solid ________...?

(A) Are widely spaced and move freely
(B) Are tightly packed together and stay in a fixed position

(C) Are loosely packed and move randomly
(D) Are sparse and vibrate at long distances

✅ Correct Answer: Are tightly packed together and stay in a fixed position

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Bleaching powder contains___________...?

(A) Nitrogen
(B) Iodine

(C) Chlorine
(D) Bromine

✅ Correct Answer: Chlorine

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A crescograph is a device for measuring the growth in __________...?

(A) Micro Organism
(B) Plants

(C) Human
(D) Pollution

✅ Correct Answer: Plants

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Diabetes mellitus affects human system following a disorder in _____________...?

(A) Anatomy
(B) Behaviour

(C) Metabolism
(D) Excretion

✅ Correct Answer: Metabolism

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The average adult has a blood volume of about __________ liters....?

(A) 4
(B) 5

(C) 6
(D) 7

✅ Correct Answer: 5

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Ozone layer thickness is measured in____________...?

(A) Metre
(B) Joule

(C) Pounds
(D) Dobson

✅ Correct Answer: Dobson

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The blotting paper helps observe liquid by__________...?

(A) Surface Action
(B) Capillary Action

(C) Viscosity
(D) Boldness

✅ Correct Answer: Capillary Action

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Basidiospores are considered to be a major source of ___________...?

(A) airborne allergens
(B) water borne allergens

(C) animal faeces
(D) bio-weapon

✅ Correct Answer: airborne allergens

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

(A) 75%
(B) 72%

(C) 70%
(D) 73%

✅ Correct Answer: 70%

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The best conductor of heat among liquid is___________...?

(A) Water
(B) Mercury

(C) Ether
(D) Alcohol

✅ Correct Answer: Mercury

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The blue colour of clear sky is due to_______________...?

(A) Reflection of light
(B) Refraction of light

(C) Diffraction of light
(D) Dispersion of light

✅ Correct Answer: Dispersion of light

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Severe deficiency of Vitamin D results in __________....?

(A) scurvy
(B) rickets

(C) night blindness
(D) None of these

✅ Correct Answer: rickets

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Symbol of Iron is__________...?

(A) Na
(B) Fr

(C) Fe
(D) Zn

✅ Correct Answer: Fe

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Sunlight is a Great Source of ____________...?

(A) vitamin C
(B) vitamin D

(C) vitamin E
(D) vitamin K

✅ Correct Answer: vitamin D

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What is it called when the Earth is closest to the sun _____________...?

(A) Aphelion
(B) Perihelion

(C) Apoapsis
(D) Periapsis

✅ Correct Answer: Perihelion

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Burning of Fossil Fuels Results In ____________...?

(A) Increased oxygen level
(B) Decreases greenhouse gases

(C) Increased greenhouse gases
(D) Increased ethane level

✅ Correct Answer: Increased greenhouse gases

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Urine is produced in __________...?

(A) Kidneys
(B) Lungs

(C) Large intestine
(D) Liver

✅ Correct Answer: Kidneys

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First controlled fission of an atom was carried out in ________ on 1938....?

(A) U.S
(B) Germany

(C) Russia
(D) U.K

✅ Correct Answer: Germany

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Milk tastes sour when kept in the open for sometime due to the formation of __________...?

(A) lactic acid
(B) citric acid

(C) acetic acid
(D) carbonic acid

✅ Correct Answer: lactic acid

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The SI unit of Dipole moment is __________...?

(A) Debye
(B) Cm

(C) Weber
(D) Coulumb

✅ Correct Answer: Debye

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Change of state form liquid to solid is _________...?

(A) Boiling
(B) Freezing

(C) Evaporation
(D) None of these

✅ Correct Answer: Freezing

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An example of true solution is ______...?

(A) Solution of starch
(B) Solution of soap

(C) Ink in water
(D) Tooth paste

✅ Correct Answer: Ink in water

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Earth is closest to the sun every year in early ______________, when it’s winter for the Northern Hemisphere. We’re farthest away from the sun in early __________________, during our Northern Hemisphere summer....?

(A) January – July
(B) June – December

(C) July – January
(D) December – June

✅ Correct Answer: January – July

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The main cause of air pollution is __________...?

(A) Burning Of Fuels
(B) Forests

(C) Fertilizers
(D) None of these

✅ Correct Answer: Burning Of Fuels

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

(A) Acidic
(B) Basic

(C) Amphoteric
(D) Neutral

✅ Correct Answer: Basic

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The instrument which i specially design for recording earth quake wave is called seismograph which measure earth quake waves on a ____________...?

(A) Diatonic scale
(B) Fahrenheit Scale

(C) Richter scale
(D) Celsius Scale

✅ Correct Answer: Richter scale

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The color of blood is red due to __________...?

(A) Haemoglobin
(B) Neutrophils

(C) Esinophils
(D) Hematocrit

✅ Correct Answer: Haemoglobin

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Equator passes through one of these countries___________...?

(A) Saudi Arabia
(B) Italy

(C) Japan
(D) None

✅ Correct Answer: None

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Newton metre is a unit of __________....?

(A) Substance
(B) Length

(C) torque
(D) Work

✅ Correct Answer: torque

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The atmosphere near the earth’s surface is “heated from below.” Which of the following does not significantly contribute to this heating _____________________...?

(A) Conduction of heat upward from a hot surface
(B) Convection from a hot surface

(C) Absorption of infrared energy that has been radiated from the surface
(D) Heat energy from the earth’s interior

✅ Correct Answer: Heat energy from the earth’s interior

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A train goes past a railway station at a high speed. A young boy standing on the edge of the platform is likely to __________...?

(A) Remain unaffected
(B) Fall away from the train

(C) Fall towards the train
(D) Fall away from or towards the train depending upon the speed

✅ Correct Answer: Fall towards the train

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Muscle fatigue is caused by the accumulation of___________...?

(A) Uric acid
(B) Lactic acid

(C) Oxalacetic acid
(D) Fyruvie acid

✅ Correct Answer: Lactic acid

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Summer solstice means__________...?

(A) longest day
(B) longest night

(C) smallest day
(D) none of these

✅ Correct Answer: longest day

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Stratosphere is the atmospheric layer that absorbs most of __________ that Earth receives from the Sun....?

(A) Infrared radiation
(B) Ultraviolet radiation

(C) Ozone layer
(D) Radio waves

✅ Correct Answer: Ultraviolet radiation

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The luster of diamond is due to_________...?

(A) Reflection
(B) Total internal reflection

(C) Refraction
(D) None of these

✅ Correct Answer: Total internal reflection

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

(A) Oil
(B) Alcohol

(C) Gases
(D) Solid

✅ Correct Answer: Gases

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Year is longest on:___________...?

(A) Jupiter
(B) Earth

(C) Mercury
(D) Mars

✅ Correct Answer: Jupiter

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Comets are made mostly of ______________...?

(A) Ice and dust
(B) Dust and lights

(C) Ice, dust and lights
(D) All of the above

✅ Correct Answer: Ice and dust

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PSR J0108-1431 is the closest known ______________ to Earth...?

(A) Black hole
(B) Red giant

(C) Quasar
(D) Pulsar

✅ Correct Answer: Pulsar

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The speed of light is __________...?

(A) 280,000 km/s
(B) 300,000 km/s

(C) 320,000 km/s
(D) none of these

✅ Correct Answer: 300,000 km/s

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Amino acids are a product of the digestion of: ___________...?

(A) Carbohydrates
(B) Fats

(C) Proteins
(D) Vitamins

✅ Correct Answer: Proteins

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Human bone does not contain_________...?

(A) Calcium
(B) Chondroitin sulfate

(C) Boron
(D) phosphate

✅ Correct Answer: Boron

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Acid deposition causes ______________________...?

(A) the greenhouse effect to lessen
(B) lakes and forests to die

(C) acid indigestion in humans
(D) all the above are correct

✅ Correct Answer: lakes and forests to die

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Caustic Soda is extensively used for making __________...?

(A) Surf
(B) Soap

(C) Plaster of Paris
(D) Gum

✅ Correct Answer: Soap

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According to Big Bang Theory, the Universe began about __________ billion years ago....?

(A) 10 – 20
(B) 20 – 30

(C) 30 – 40
(D) 40 – 50

✅ Correct Answer: 10 – 20

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When white light is passed through a prism, it splits into __________ colours....?

(A) 5
(B) 6

(C) 7
(D) 8

✅ Correct Answer: 7

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Copper is used in the production of___________...?

(A) Brick kilns
(B) Children toys

(C) Kitchen utilities
(D) Electric wires

✅ Correct Answer: Electric wires

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Stars in the sky appear to twinkle due to _________...?

(A) a series of refractions
(B) a series of reflections

(C) a surface tension phenomenon
(D) multiple diminishing brightness

✅ Correct Answer: a series of refractions

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Nearest star to the sun is: ___________...?

(A) Proxima Centauri
(B) Alpha Scorpius

(C) Beta Orionis
(D) Vegetal

✅ Correct Answer: Proxima Centauri

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Thanatology is the study of _________...?

(A) Careers
(B) Being

(C) Death
(D) Soul

✅ Correct Answer: Death

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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

✅ Correct Answer: Sodium Carbonate

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Lunar eclipse occurs on__________...?

(A) New Moon
(B) Full Moon

(C) Half Moon
(D) Quarter Moon

✅ Correct Answer: Full Moon

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