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Which of the following is correctly associated with oxygen?

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Question ID #27220 UPSC UPSC EPFO APFC 2026 Mock Test Series UPSC EPFO APFC 2026 Full-Length Mock Test 7 Medium

Correct Answer: D. Gas essential for aerobic respiration
Oxygen is required for aerobic respiration.

Question: Which of the following is correctly associated with oxygen?

A. Genetic material in most organisms

B. Greenhouse gas strongly associated with fossil-fuel combustion

C. Deficiency disease caused by lack of vitamin D in children

D. Gas essential for aerobic respiration

Correct Answer: D. Gas essential for aerobic respirationOxygen is required for aerobic respiration.

Which of the following is correctly associated with oxygen? - MCQ Explanation

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Correct answer: D. Gas essential for aerobic respiration