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WAEC Biology 2006 Question 48

Question 48

Pollution

Air pollution can be reduced by the following methods except

  1. A.building tall factory chimneys
  2. B.passing waste gases through filters and absorbers
  3. C.using lead-free petrol in cars
  4. D.recycling tins, cans and bottles
Show the answer and explanation

Answer: D (recycling tins, cans and bottles)

Explanation

Recycling tins, cans and bottles mainly reduces solid waste (land pollution); the other methods deal with harmful gases in the air.