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Discussion :: Environmental Science

  1. The presence of solid, liquid or gaseous compounds, which may not be normally present, or in excess concentration in the atmosphere is called

    2. A.

     air pollution
    B.

     water pollution
    C.

     soil pollution
    D.

     radioactive pollution

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    Answer : Option A

    Explanation :

    The presence in or introduction into the air of a substance which has harmful or poisonous effects is called air pollution.

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