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  1. Ozone layer in the upper parts of the atmosphere serves as a protective shield against harmful

    2. A.

     Solar ultraviolet radiation
    B.

     Solar infrared radiation
    C.

     CO2 in the air
    D.

     SO2 in the air

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    Answer : Option A

    Explanation :

    The ozone layer is a natural layer of gas in the upper atmosphere that protects humans and other living things from harmful ultraviolet (UV) radiation from the sun. The ozone layer filters out most of the sun's harmful UV radiation and is therefore crucial to life on Earth.

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