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10th Class Science Sources of Energy Question Bank Sources of Energy

  • question_answer
    Identify the disadvantage of using coal as a fuel.

    A) It produces a lot of noise.

    B) It is free of impurities

    C) It produces a lot of soot.

    D) It does not produce a hot flame.

    Correct Answer: C

    Solution :

    When coal is used as a fuel, it produces a lot of soot.


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