Which of the following is not an air pollutant?
Correct answer: A. N2
- A. N2
- B. N2O
- C. NO
- D. CO
Explanation
Nitrogen is an inert gas - meaning it doesn't chemically react with other gases - and it isn't toxic
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Correct answer: A. N2
Explanation
Nitrogen is an inert gas - meaning it doesn't chemically react with other gases - and it isn't toxic
Last updated