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  1. Main pollutants released from petroleum refineries is

    2. A.
    CO, SO2 & H2S.
    B.
    CO2, NO & SO3.
    C.
    CO2, H2S & NO2.
    D.
    SO3, NO2 & CO2.

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    Answer : Option A

    Explanation :

    No answer description available for this question.

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