What causes ozone layer depletion
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When CFCs reach the upper atmosphere they are first degraded by the very high energy of UV (ultra-violet) radiation. Degradation of CFC leaves a free chlorine atom. The basic cause of ozone layer depletion is that this chlorine atom then breaks up ozone molecules. Ozone then disappears.
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Ozone layer depletion is caused due to the chlorofluorocarbons present in atmosphere. Chlorofluorocarbons are released in the atmosphere mainly form refrigerators , air conditioners etc.
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