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ICSE Class 9 Geography Question 13 of 19

Composition and Structure of the Atmosphere — Question 8

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Question

Question 8

What would be the effect of Ozone Layer depletion? List the natural causes of Ozone Layer depletion.

Answer

The effects of ozone layer depletion are as follows:

  1. Increased levels of harmful ultraviolet (UV) radiation reaching the Earth's surface.
  2. Ultraviolet radiation can lead to skin cancer, eye damage, cataracts and weakened immune systems.
  3. It can cause damage to marine ecosystems.
  4. Increased UV radiation can harm crops, leading to reduced agricultural productivity and food scarcity.
  5. It can affect biogeochemical cycles, including those of nitrogen, sulfur, and carbon.
  6. It can influence climate patterns, altering atmospheric temperatures and precipitation levels.

The natural causes of ozone layer depletion are volcanic eruptions and solar flares.