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9th Class Science Natural resources Question Bank 9th CBSE Science Natural resources

  • question_answer
      (a) Name the gases causing greenhouse effect. (b) Name the compound causing depletion of ozone layer.

    Answer:

           (a) Gases such as carbon dioxide  methane  nitrogen     oxide      chlorofluorocarbons (CFCs) are known as greenhouse gases and cause greenhouse effect. (b) Chlorofluorocarbons (CFCs) cause depletion of ozone layer,  


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