Which of the following statements is correct?

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(A) Option $A$ is correct because Chlorofluorocarbons ($CFC$s) are released in the lower atmosphere and eventually reach the stratosphere,where they c

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$CFC$s are discharged in the lower part of the atmosphere,move upward,and reach the stratosphere.

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(A) Option $A$ is correct because Chlorofluorocarbons ($CFC$s) are released in the lower atmosphere and eventually reach the stratosphere,where they cause ozone depletion.Option $B$ is incorrect because the Montreal Protocol was signed to control the emission of ozone-depleting substances,not $CO_2$.Option $C$ is incorrect because the ozone hole refers to the thinning of the ozone layer in the stratosphere,not the troposphere.Option $D$ is incorrect because Jhum cultivation (slash-and-burn agriculture) is a major cause of deforestation,not afforestation.

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