Which atmospheric gas is most important for respiration? MCQ with Answer and Explanation

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Which atmospheric gas is most important for respiration?

A. Neon

B. Nitrogen

C. Oxygen

D. Carbon Dioxide

Answer: Option C

Solution (By JKSSB Mock Tests)

Oxygen is essential for respiration in humans and most living organisms.

This question belongs to: Geography GK Physical Geography

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Practice More Physical Geography Questions

Question #1

Which ocean lies entirely in the Northern Hemisphere?

A. Indian Ocean

B. Pacific Ocean

C. Southern Ocean

D. Arctic Ocean

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Correct Answer: Option D

Explanation:
The Arctic Ocean is located entirely within the Northern Hemisphere.

This question belongs to: Geography GK Physical Geography

Question #2

Which is the largest plateau in the world?

A. Deccan Plateau

B. Tibetan Plateau

C. Colorado Plateau

D. Patagonian Plateau

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Correct Answer: Option B

Explanation:
The Tibetan Plateau is the world's largest and highest plateau.

This question belongs to: Geography GK Physical Geography

Question #3

Which lake is known as the 'Pearl of Siberia'?

A. Lake Balkhash

B. Lake Baikal

C. Lake Superior

D. Lake Victoria

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Correct Answer: Option B

Explanation:
Lake Baikal is often called the Pearl of Siberia because of its beauty and ecological significance.

This question belongs to: Geography GK Physical Geography

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