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JAMB Biology 2000 Question 41

Question 41

Pollution

The pollutants that contribute to the depletion of the ozone layer in the atmosphere are

  1. A.radioactive materials
  2. B.oxides of sulphur
  3. C.oxides of carbon
  4. D.chlorofluorocarbons.
Show the answer and explanation

Answer: D (chlorofluorocarbons.)

Explanation

CFCs release chlorine in the upper atmosphere, which breaks down ozone molecules.