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Chlorofluorocarbons are air pollutants that originates from…

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Chlorofluorocarbons are air pollutants that originates from

A. crude oil refining

B. coal mining

C. motor vehicle exhaust

D. cooling system




The examiner wants to know the option that could serve as a source of chlorofluorocarbons.

Now for the right answer to the above question:

  1. Chlorofluorocarbons are not products of crude oil refining. so, A is quite incorrect.
  2. Neither are they products of coal mining. B is also incorrect.
  3. Motor vehicle exhausts emit pollutants such as oxides of carbon and Sulphur, but not chlorofluorocarbons. So, C is incorrect.
  4. D is correct, chlorofluorocarbons are emitted from refrigerants, air conditioners, and fire extinguishers.
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You may please note that:

  • The byproducts of crude oil refining does not include chlorofluorocarbons as some might be led to believe.

Use the questions and answers session to raise further questions on this topic…

/ culled from 2017 JAMB-UTME biology question 15 /

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