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  4. Ecology And Environment

SSC Ecology And Environment Sample Paper NCERT Sample Paper-1

  • question_answer
    The sources of mercury pollution include
    1. Coal fired thermal power plants.
    2. Supersonic jets.
    3. Automobiles.
    4. Waste incinerators
    Select the correct answer using the codes given below.

    A) 1, 2 and 3 only

    B) 1, 3 and 4 only

    C) 1 and 3 only     

    D) 1 and 4 only

    Correct Answer: B

    Solution :

    Coal-fired power plants - Mercury exists naturally in coal, making coal-fired power plants the largest source of mercury pollution in this country. Coal accounts for nearly 50 percent of the electricity generated in this country. Supersonic jets releases nitrogen oxides and not mercury.


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