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  • Air Pollution: Causes, Effects and Control
  • Which of the following is not an air pollutant?
Multiple choice

Which of the following is not an air pollutant?

  1. Ammonia

  2. Carbon dioxide

  3. Hydrogen

  4. Hydrogen fluoride

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Hydrogen is not a pollutant.

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