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

  • question_answer
    What is the source of fly ash?

    A)  Petroleum        

    B)         Natural gas

    C)  Coal                     

    D)         All of the above

    Correct Answer: C

    Solution :

    Fly ash is a fine powder formed when large amount of coal is burnt in sufficient quantity of air in places like thermal power stations etc. The ash is carried by atmospheric air due to strong current of air in the furnace, Hence, this ash is called fly ash. It causes respiratory problems when inhaled by man


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