SSC Ecology And Environment Sample Paper NCERT Sample Paper-2

  • question_answer
    'Ozone hole' refers to

    A)  Increased concentration of ozone

    B)  Hole in the ozone layers in stratosphere

    C)  Reduction in ozone thickness in troposphere

    D)  Reduction in the thickness of ozone layer in stratosphere

    Correct Answer: B

    Solution :

    [b] In the atmosphere, ozone is largely found in the stratosphere. Ozone protects the living organisms on the earth from the harmful- effects of ultra-violet radiations, which it absorbs. Due to increase in the ozone-depleting gases, there is a decrease in the concentration of ozone called ozone hole.

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