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Unilorin Post-UTME Geography 2024 (Model questions) Question 10

Question 10

Environmental Hazards and Conservation

The thinning of the ozone layer is mainly caused by:

  1. A.Volcanic eruptions
  2. B.Greenhouse
  3. C.CFC emissions
  4. D.Acid rain
Show the answer and explanation

Answer: C (CFC emissions)

Explanation

CFCs from old aerosols and refrigerators rise to the stratosphere, where they release chlorine that destroys ozone.