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  1. Ozone depletion in the stratosphere is mainly caused by

    2. A.

     SO2
    B.

     NO2
    C.

     NO
    D.

     Chlorofluorocarbons

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    Answer : Option D

    Explanation :

    Ozone depletion occurs when chlorofluorocarbons (CFCs) and halons—gases formerly found in aerosol spray cans and refrigerants—are released into the atmosphere.

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