9th Class Science Natural resources Question Bank Natural Resources

  • question_answer
    Which of the following chemicals cause the thinning of layer P?

    A) Carbon monoxide

    B)        Sulphur dioxide

    C) Chlorofluorocarbons       

    D) Both [a] and [c]

    Correct Answer: D

    Solution :

    Carbon monoxide and CFCS are greenhouse gases that cause the thinning of layer P.


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