UPSC General Studies Sample Paper General Studies Sample Paper-5

  • question_answer
    Which of the following characteristics are associated with Persistent Organic Pollutants (POPs)?
    1. Biomagnification
    2. Bioaccumulation
    3. Resistance to environmental degradation.
    4. Travel only in the areas which are near to the source of the pollutant.
    5. POPs are found all over the world including Antarctica.
    Select the correct answer using the codes given below.

    A)  1 and 3           

    B)  1, 2, 3 and 4       

    C)  2, 4 and 5                    

    D)  1, 2, 3 and 5

    Correct Answer: D

    Solution :

    [d] POPs are released to the environment have been shown travel vast distances from their original source. Due to their chemical properties, many POPs are semi-volatile an insoluble. These compounds are therefore unable ": transport directly through the environment. The indirect routes include attachment to particulate matter and through the food web. The chemicals' semi-volatility allows them to travel long distances through the atmosphere before being deposited. Thus POPs can be found all over the wore including in areas where they have never been used and remote regions such as the middle of oceans and Antarctica.

You need to login to perform this action.
You will be redirected in 3 sec spinner