sea horse is a __...? Mcqs

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sea horse is a __...?

(A) Fish
(B) Horse

(C) Crocodile
(D) None of these

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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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During a total solar eclipse there is most likely to be_____________...?

(A) A decrease in the rate of photosynthesis
(B) An increase in the rate of photosynthesis

(C) A decrease in the rate of respiration
(D) No effect on either photosynthesis or respiration

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The most dense and heaviest planet is___________...?

(A) Jupiter
(B) Earth

(C) Mars
(D) Venus

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

(A) Mitochondria
(B) Chromosomes

(C) Ribosomes
(D) Lysosomes

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“Green House Effect” means:____________...?

(A) Pollution
(B) Prevention of ultraviolet rays

(C) Trapping of Solar energy due to atmospheric carbon dioxide
(D) D. None

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Which human hormone is called love hormone...?

(A) Oxytocin
(B) Melatonin

(C) Adrenalin
(D) Renin

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There is a hole in the Ozone Layer at__________...?

(A) South Pole
(B) North Pole

(C) Both A and B
(D) None of These

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Which of the gas is not known as green house gas...?

(A) Methane
(B) Nitrous oxide

(C) Carbon dioxide
(D) Hydrogen

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Earth's magnetic field always has a horizontal component except at...?

(A) Equator
(B) Magnetic pole

(C) At 60*latitude
(D) None of these

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For being able to see three-dimensional pictures we have to use_________...?

(A) A binocular
(B) A camera

(C) An epidiascope
(D) A stereoscope

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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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By which process does the smell of cooking spread to all the rooms in a house...?

(A) Distillation
(B) Diffusion

(C) Decomposition
(D) Displacement

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Heat transfer horizontally within the atmosphere is called...?

(A) Conduction
(B) Convection

(C) Absorption
(D) Advection

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For being able to see three-dimensional pictures we have to use___________...?

(A) A binocular
(B) A camera

(C) A epidiascope
(D) A stereoscope

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Bauxite is an ore of_________...?

(A) copper
(B) zinc

(C) aluminium
(D) iron

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Any disease or infection that is naturally transmissible from vertebrate animals to humans is called...?

(A) Zonoses
(B) Zoonoses

(C) Ananoses
(D) Chordnoses

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Fraction is a force which always opposes...?

(A) Gravity
(B) Motion

(C) Electromagnetism
(D) Inertia

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Nuclear radiation is emitted by those elements whose:...?

(A) molecules are stable
(B) molecules are unstable

(C) nuclei are stable
(D) nuclei are unstable

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____, days become longer and night become shorter....?

(A) Autumn
(B) Summer

(C) Winter
(D) Spring

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The Green House Effect is caused by an excess of ...?

(A) Carbon dioxide
(B) Carbon monoxide

(C) Carbon tetrachloride
(D) None of the above

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____, days become shorter and nights become longer....?

(A) Summer
(B) Spring

(C) Autumn
(D) Winter

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Which animal has no vocal chords ...?

(A) Lion
(B) Zebra

(C) Dolphin
(D) Giraffes

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A man presses more weight on earth at___...?

(A) Sitting position
(B) Standing Position

(C) Lying Position
(D) None of these

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Which of the following can be used to reduce friction between moving parts of machines...?

(A) Sand
(B) Grease

(C) Gears
(D) Screws

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

(A) Fusionable
(B) Fissionable

(C) Combustible
(D) None of these

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The unicellular structure, responsible for asexual reproduction without fusion is ______...?

(A) Pores
(B) Spores

(C) Gametes
(D) Pollen grains

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The centrifuge machine used for separation of _______...?

(A) Juice
(B) pH

(C) Mud
(D) Crystal

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Which of the following is a force...?

(A) Heat
(B) Light

(C) Magnetism
(D) Kinetic

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Coulombs law most closely resembles with ______...?

(A) Law of conservation of Energy
(B) Newton's Law of Gravitation

(C) Newton's 2nd law of Motion
(D) Faraday's law

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Which of the following will you use to remove rust stains on cloth...?

(A) Alcohol
(B) Oxalic Acid Solution

(C) Kerosene Oil
(D) None of These

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For about how many hours food remains in small intestine...?

(A) 2 to 6 hours
(B) 12 to 25 hours

(C) 7 to 11 hours
(D) 24 to 48 hours

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Which substance expands the most; for the same rise in temperature...?

(A) Water
(B) Air

(C) Copper
(D) Class

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Endothermic reactions are those in which ________....?

(A) Heat is evolved
(B) Heat is absorbed

(C) Temperature increases
(D) Light is produced

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Which rays are used for sterilization of medical instruments...?

(A) α-rays
(B) β-rays

(C) γ-rays
(D) x-rays

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If a metal block applies a force of 20 N on an area of 5 cm2. Find the pressure being applied by the block on the area of _____ ...?

(A) 100 Ncm^-2
(B) 0.8 Ncm^-2

(C) 0.25 Ncm^-2
(D) 4 Ncm^-2

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