what is ozone hole and how is it caused
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The ozone layer, which lies high up in the atmosphere, shields us from harmful ultraviolet (UV) rays that come from the Sun. Unfortunately we punched a hole in it, through the use of gases like chlorofluorocarbons (CFCs) in spray cans and refrigerants, which break down ozone molecules in the upper atmosphere.
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Depletion of ozone layer is called ozone hole .
Ozone depletion occurs when chlorofluorocarbons (CFCs) and halons—gases formerly found in refrigerants—are released into the atmosphere. CFCs and halons cause chemical reactions that break down ozone molecules, reducing ozone's ultraviolet radiation-absorbing capacity.
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