Depletion of ozone is mainly due to

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(A) The depletion of the ozone layer is primarily caused by chlorofluorocarbons $(CFCs)$.$CFCs$ are synthetic chemical compounds that contain chlorine

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chlorofluorocarbon compounds

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(A) The depletion of the ozone layer is primarily caused by chlorofluorocarbons $(CFCs)$.$CFCs$ are synthetic chemical compounds that contain chlorine,fluorine,and carbon. When released into the atmosphere,they rise to the stratosphere where they are broken down by ultraviolet radiation,releasing chlorine atoms.These chlorine atoms act as catalysts to break down ozone molecules $(O_3)$ into oxygen $(O_2)$ and atomic oxygen $(O)$,thereby thinning the ozone layer.$CFCs$ are commonly used in refrigerators,air conditioners,and aerosol sprays.

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