There is _____________ percent of Nitrogen in the air?
Correct answer: C. 78%
- A. 30%
- B. 87%
- C. 78%
- D. 80%
Explanation
Nitrogen makes up approximately 78% of Earth’s atmosphere, while oxygen makes up about 21%. The nearby 80% option is only a rough approximation and is not the standard value.
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Practise Health and Nutrition
213 free Health and Nutrition MCQs from Health and Physical Education, each with the correct answer and an explanation. Unlimited attempts, no account needed.
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