3) How do chloro fluorocarbons cause depletion of ozone layer?
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Explanation:
Ozone depletion occurs when chlorofluorocarbons (CFCs) and halons—gases formerly found in aerosol spray cans and refrigerants—are released into the atmosphere (see details below). ... CFCs and halons cause chemical reactions that break down ozone molecules, reducing ozone's ultraviolet radiation-absorbing capacity.
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Explanation:
Ozone depletion
Man-made compounds such as chlorofluorocarbons
(CFCs), hydrofluorocarbons (HCFCs) and halons destroy
ozone in the upper atmosphere (stratosphere). ...
Decreased concentration of stratospheric ozone allows increased amounts of UV-B to reach the earth's
surface.The introduction of ozone into the stratosphere
occurs through CFCs (Chlorofluorocarbons). ... In fact,
they break up only through sunlight, which divides their
molecules, causing the release of chlorine
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