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  4. Ecology And Environment

SSC Ecology And Environment Sample Paper NCERT Sample Paper-6

  • question_answer
    The most hazardous metal pollutant of automobile exhaust is

    A)  Lead               

    B)  copper

    C)  Mercury

    D)  cadmium

    Correct Answer: A

    Solution :

    [a] The automobile-exhaust causes 60% of atmospheric pollution. It contains carbon monoxide, sulphur dioxide, oxides of nitrogen, lead and ammonia. The lead is used as an anti-knock reagent in the petrol, which is released along with the exhaust. Its higher doses cause lead poisoning.


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