____________ contains 75–80 % of the mass of the atmosphere....? Mcqs

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____________ contains 75–80 % of the mass of the atmosphere....?

(A) Stratosphere
(B) Mesosphere

(C) Thermosphere
(D) Troposphere

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It is possible to recognize a person in the dark by simply hearing his unique voice . It is because of the_______...?

(A) pitch
(B) Frequency

(C) Time period
(D) Quality

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Weight is the pull of _____ that acts on the mass of an object....?

(A) Stars
(B) Magnet

(C) Gravity
(D) Electrostatic force

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Which gas is used by the green plants to make their food...?

(A) O2
(B) CO2

(C) CO
(D) N2

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What is the 2nd closest galaxy to the Milky Way...?

(A) Triangulum
(B) Andromeda

(C) Messier 81
(D) Whirlpool

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The natural world that surrounds a living and non-living things is called...?

(A) Ecosystem
(B) Environment

(C) Habitat
(D) Biodiversity

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International date line passes through which strait...?

(A) Malacca Strait
(B) Adam Strait

(C) Bering Strait
(D) Java Strait

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Tetanus is caused by____________...?

(A) Clostridium
(B) Virus

(C) Bacteriophage
(D) Salmonella

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The transfer of characteristics between parents and offspring is called...?

(A) Evolution
(B) Inheritance

(C) Genetic drift
(D) Mutation

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What is the main composition of the sun...?

(A) Oxygen and Ammonia
(B) Hydrogen and Helium

(C) Hydrogen and Oxygen
(D) Methane and Hydrogen

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