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(B) Chlorofluorocarbons (CFCs) are the primary substances responsible for the depletion of the ozone layer.These compounds are used as refrigerants in

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Chlorofluorocarbons (CFCs)

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(B) Chlorofluorocarbons (CFCs) are the primary substances responsible for the depletion of the ozone layer.These compounds are used as refrigerants in air conditioners and refrigerators.When CFCs reach the stratosphere,they are broken down by ultraviolet $(UV)$ radiation,releasing chlorine atoms.These chlorine atoms act as catalysts in the breakdown of ozone $(O_3)$ molecules into oxygen $(O_2)$,thereby thinning the ozone layer.

Which of the following is responsible for the depletion of the ozone layer?

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