SEO MCQ Question Page

Which gas is essential for respiration?

Practice this MCQ with options, instant answer checking, explanation, exam-wise filters, next/previous navigation and shareable result image.

Question ID #867

Correct Answer: C. Oxygen

Question: Which gas is essential for respiration?

A. Nitrogen

B. Carbon dioxide

C. Oxygen

D. Hydrogen

Correct Answer: C. Oxygen

Which gas is essential for respiration? - MCQ Explanation

This question is useful for exam preparation because it provides direct multiple-choice practice with options, answer checking and explanation.

Correct answer: C. Oxygen