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  • What do you mean by ozone hole? What are its consequences?

14.10.    What do you mean by ozone hole? What are its consequences?

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The depletion of the ozone layer due to the chlorine-free radical Cl^\bullet+O_{3}(g)\rightarrow ClO^\bullet (g)+O_{2}(g) , which is continuously regenerated at the stratosphere. This phenomenon is known as the ozone hole.
Effects of depletion of the ozone layer-

  • With the depletion of the ozone layer, more amount of the UV radiation will enter the earth's atmosphere.
  • UV radiations are harmful to us because they lead to skin damage, ageing of the skin, cataract, skin cancers and sunburns.
  • It increases the evaporation of surface water through the stomata of the leaves and reduces the moisture content from the soil.
  • Plants proteins are also affected by UV radiation, which leads to the mutation of cells.

 

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