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

Biology
JAMB 2000

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

  • A. radioactive materials
  • B. oxides of sulphur
  • C. oxides of carbon
  • D. chlorofluorocarbons
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Correct Answer: Option D
Explanation

Chlorofluorocarbons (CFCs) deplete the ozone layer by releasing chlorine atoms that react with ozone molecules. When chlorofluorocarbons (CFC) drift upwards towards the stratosphere, they come in contact with the Ozone layer. This leads to a chemical reaction where the CFC molecules are broken up by ultraviolet radiation, releasing chlorine atoms, which are able to destroy ozone molecules. The correct answer is option D

There is an explanation video available below.


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Explanation Video

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Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts
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Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts
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