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ICSE Class 9 Chemistry Question 19 of 31

Atmospheric Pollution — Question 31

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Question

Question 31

Enumerate methods of protecting the ozone layer and preventing it's depletion.

Answer

Ozone layer can be protected by :

  1. Use of products that contain CFC's to be replaced by alternative products.
  2. Substitutes for CFC's have been initiated by scientists and use of HCFC [hydro chlorofluorocarbons] is being considered. Labelling products as CFC free is initiated.
  3. International Treaty [Montreal protocol] was also initiated to prevent ozone depletion.