Question

damage to ozone layer is cause to concern Justify the statement suggest any two steps to limit this damage and mention why United nation act to control the production of CFC's used in refrigerators​

Answer 1

Answer:

The depletion of ozone causes the harmful UV rays to reach the earth and this has resulted in increased incidence of skin cancers in humans. UV rays may also cause genetic mutations in living organisms. To limit the damage to the ozone layer, the release of CFCs into the atmosphere must be reduced.

Explanation:

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Answer 2

Answer:

Explanation:

Cause of concern: Ozone layer present in the stratosphere has thinned out by about 18 % over the equator and more so over the Antartica where a big ozone hole appears every year. This has increased the level of UV-B radiations reaching the earth by 15-20%. These radiations are causing increased number of skin cancers,cataracts and reduced immunity in human beings. There is increased incidence of blinding of animals ,death of young ones, reduced photosynthesis, higher number of mutations an damage to arteries.

Steps to limit damage:

(i) Dispose of pre-1995 refrigerators, freezers, and air conditioning units properly.

(ii) Ban on production and use of chloroflurocarbons.