FORESTRY
ECOLOGY AND ENVIRONMENT
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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atmosphere
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ozone layer
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UV barrier
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ezone layer
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Detailed explanation-1: -The stratospheric ozone layer is Earth’s “sunscreen” – protecting living things from too much ultraviolet radiation from the sun. The emission of ozone depleting substances has been damaging the ozone layer.
Detailed explanation-2: -The depletion of the ozone layer leads, on the average, to an increase in ground-level ultraviolet radiation, because ozone is an effective absorber of ultraviolet radiation. The Sun emits radiation over a wide range of energies, with about 2% in the form of high-energy, ultraviolet (UV) radiation.
Detailed explanation-3: -The ozone layer is present in the lower parts of the stratosphere. It absorbs all the ultraviolet radiations and does not allow them to reach earth’s surface, thus protecting all living organisms from the harmful effects of UV radiations.