Multiple choice

The gas responsible for the deplination of the Ozone layer is

  1. sulphur dioxide

  2. chloroflouro carbons

  3. ammonia

  4. carbon dioxide

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Chlorofluorocarbons (CFCs) are synthetic compounds that were widely used in refrigeration and aerosol sprays. When released into the atmosphere, they drift to the stratosphere where UV radiation breaks them down, releasing chlorine atoms that catalytically destroy ozone molecules, creating the ozone hole.

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