Question

why depletion happen in briefly

Answer 1

When CFCs reach the stratosphere, the ultraviolet radiation from the sun causes them to break apart and release chlorine atoms which react with ozone, starting chemical cycles of ozone destruction that deplete the ozone layer. One chlorine atom can break apart more than 100,000 ozone molecules.

Answer 2

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• Hi FRIEND
• HERE IS Y0UR ANSWER
• There are many situations where human activities
• have significant effects on the environment. Ozone layer
• damage is one of them. The objective of this paper is to review
• the origin, causes, mechanisms and bio effects of ozone layer
• depletion as well as the protective measures of this vanishing
• layer. The chlorofluorocarbon and the halons are potent ozone
• depletors. One of the main reasons for the widespread concern
• about depletion of the ozone layer is the anticipated increase in
• the amounts of ultraviolet radiation received at the surface of
• the earth and the effect of this on human health and on the
• environment. The prospects of ozone recovery remain uncertain.
• In the absence of other changes, stratospheric ozone
• abundances should rise in the future as the halogen loading falls
• in response to regulation. However, the future behaviour of
• ozone will also be affected by the changing atmospheric
• abundances of methane, nitrous oxide, water vapour, sulphate
• aerosol, and changing climate.
• 
  
• 
  
• @BEBRAINY@
• @KEEP CAM AND READY FR EXAM@
• 
  
• 
  
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