The Sun produces most of its energy by_____________...? Mcqs

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The Sun produces most of its energy by_____________...?

(A) Nuclear fusion
(B) nuclear fission

(C) Burning hydrogen
(D) None of these

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Microphone converts sound energy into ___________...?

(A) Microwaves
(B) Electrical signals

(C) Optical Signals
(D) Heat energy

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Heat of sun reaches the earth by ___________...?

(A) Convection
(B) radiation

(C) Conduction
(D) None of these

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The Scientist who told “Heat is a form of Energy” was___________...?

(A) Thomas Alva Edison
(B) Newton

(C) Joule
(D) Kepler

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The theory of Expanding Universe was first propounded by____________...?

(A) Einstein
(B) Newton

(C) Gahleo
(D) Hubble

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Sodium carbonate is produced by____________...?

(A) haber process
(B) Amonia solvay process

(C) decons process
(D) lead chamber process

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Being Myopic means you have problem in seeing ______________...?

(A) Distant objects clearly
(B) Close objects clearly

(C) Both A and B
(D) Distant and close objects look unclear

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In fireworks,the green flame is produced because of __________...?

(A) Sodium
(B) Barium

(C) Mercury
(D) Potassium

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Some substances are good conductor of electricity in both the solid and liquid states. These substances are generally______________...?

(A) ionic substances
(B) metallic substances

(C) molecular solids
(D) covalent network solids

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Urine is produced in __________...?

(A) Kidneys
(B) Lungs

(C) Large intestine
(D) Liver

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The major source of quick energy is ___________...?

(A) Carbohydrates
(B) Minerals

(C) vitamins
(D) None of these

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Trypsin is an enzyme which digests protein produced by_____________...?

(A) Liver
(B) Pancreas

(C) Stomach
(D) Small intestine

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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

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The atmospheric greenhouse effect is produced mainly by the __________________...?

(A) Absorption and re-emission of visible light by the atmosphere
(B) Absorption and re-emission of ultraviolet radiation by the atmosphere

(C) Absorption and re-emission of infrared radiation by the atmosphere
(D) Absorption and re-emission of visible light by clouds

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In order to prevent the corrosion of iron pipes they are often coated with a layer of zinc. This process is termed as____________...?

(A) Electroplating
(B) Annealing

(C) Galvanization
(D) Vulcanization

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