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8th Class Science Coal and Petroleum Question Bank Coal and Petroleum Summative Subjective Problems

  • question_answer
    What is Coal? Write its uses?

    Answer:

    Coal is a fossil fuel it is hard as stone. Uses:     (i) Coal is used to cook food.                 (ii) It is used in thermal power plants to produce electricity.                 (iii) It is also used as industrial fuel.


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