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WAEC Biology 2014 Question 34

Question 34

Pollution

Use the substances listed below to answer this question.
I. Fertilizer II. Insecticides III. Sewage IV. Crude oil V. Sulphur dioxide.
The atmosphere can be polluted by

  1. A.I only
  2. B.III only
  3. C.IV only
  4. D.II and V only.
Show the answer and explanation

Answer: D (II and V only.)

Explanation

Insecticide sprays and sulphur dioxide (from burning fuels) are released into the air; the others mainly pollute land and water.