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WAEC Biology 1992 Question 48

Question 48

Pollution

Which of the following is a pollutant of air?

  1. A.Oxygen
  2. B.Water vapour
  3. C.Carbon monoxide
  4. D.Nitrogen
  5. E.Hydrogen
Show the answer and explanation

Answer: C (Carbon monoxide)

Explanation

Carbon monoxide from engines and fires is a poisonous air pollutant.