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8th Class Science Coal and Petroleum Question Bank Coal and Petroleum

  • question_answer
    When an oil well is drilled through rocks, which of the following comes out first?

    A)  Coal gas

    B)                         Marsh gas

    C)                         Natural gas

    D)                         Carbon dioxide

    Correct Answer: C

    Solution :

    In the oil wells along with petroleum, natural gas also exists. It comes out first when an oil well is drilled through rocks.


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