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9th Class Science Natural resources Question Bank Self Test-13

  • question_answer
    Which one of the following gas is the major constituent for the depletion of ozone layer?

    A)  PbO

    B)  CO

    C)  CFC

    D)  \[N{{O}_{2}}\]  

    E)  Non of these

    Correct Answer: C

    Solution :


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