A thick layer of air that surrounds the earth is known as...? Mcqs

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A thick layer of air that surrounds the earth is known as...?

(A) Ozone
(B) Atmosphere

(C) Stratosphere
(D) Hydrosphere

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For a fixed mass of gass at constant temperature, if we decrease volume, the pressure will _________...?

(A) also decrease
(B) increase

(C) remains constant
(D) none of these

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Which law states that the rate of the effusion of a gas is inversely proportional to the square root of its density...?

(A) Graham’s Law
(B) Gay-Lussac’s law

(C) Boyle’s law
(D) None of these

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Which of the following is secreted by liver and stored in the gallbladder...?

(A) Saliva
(B) Bile

(C) Gastric juice
(D) Pancreatic juice

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Chemically finger nails are made up of ____________...?

(A) Carbohydrate
(B) Fats

(C) protein
(D) Starch

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Who proposed Continental Drift Theory...?

(A) Alfred Worwick
(B) Alfred Wegener

(C) Alfred Hanks
(D) Alfred Mane

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Identify the monoatomic molecule among the following...?

(A) Helium
(B) Ozone

(C) Hydrogen
(D) Nitrogen

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The time in which Earth completes its revolution around the Sun is________...?

(A) 365.25 days
(B) 340 days

(C) 325 days
(D) 360 days

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Celestial body that affects tides of Ocean is...?

(A) Sun
(B) Moon

(C) Galaxy
(D) Meteorites

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What Color does chlorophyll not absorb...?

(A) Red
(B) Blue

(C) Green
(D) Yellow

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