SSC Ecology And Environment Sample Paper NCERT Sample Paper-3

  • question_answer
    Which of the following are non-degradable pollutants?

    A)  Mercuric salts               

    B)  Long chain phenolics

    C)  DDT                    

    D)  All of the above

    Correct Answer: D

    Solution :

    [d] Non-degradable pollutant, A pollutant that is not broken down by natural processes. Some non-degradable pollutants, like the heavy metals, create problems because they are toxic and persistent in the environment. Others, like synthetic plastics, are a problem because of their sheer volume. However the degradation products of some pollutants are themselves polluting such as the products DDE and DDD produced from degradation of DDT.

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