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ICSE Class 7 Geography Question 13 of 16

Atmosphere — Question 13

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Question

Question 4(xi)

State the effects of ozone depletion on the earth.

Answer

Effects of ozone depletion:

  1. As the ozone layer is destroyed or becomes very thin, it fails to absorb the ultraviolet radiation.
  2. As a result, an increasing amount of ultraviolet radiation reaches the earth and causes damage to plant life, human beings and marine life.
  3. Skin cancer is caused and the incidence of cataract also increases as a result of ozone depletion in the atmosphere. The body is exposed to infectious diseases.
  4. Planktons, which are the very foundation of the vast oceanic food chain, are also killed.