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. Nitrogen

B. Neon

C. Carbon Dioxide

D. Oxygen

Answer: Option D

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 latitude is known as the Arctic Circle?

A. 90° N

B. 23.5° N

C. 66.5° S

D. 66.5° N

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Correct Answer: Option D

Explanation:
The Arctic Circle is located at approximately 66.5° North latitude and marks the boundary of the Arctic region.

This question belongs to: Geography GK Physical Geography

Question #2

Which mountain pass connects India and Tibet and is one of the highest motorable passes?

A. Nathu La

B. Khardung La

C. Jelep La

D. Rohtang Pass

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Correct Answer: Option B

Explanation:
Khardung La in Ladakh is one of the world's highest motorable mountain passes and is frequently asked in SSC examinations.

This question belongs to: Geography GK Physical Geography

Question #3

The largest bay in the Atlantic Ocean is:

A. Hudson Bay

B. Bay of Biscay

C. Gulf of Guinea

D. Baffin Bay

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Correct Answer: Option A

Explanation:
Hudson Bay in northeastern Canada is one of the largest bays connected to the Atlantic system.

This question belongs to: Geography GK Physical Geography

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