Ozone layer is a protective blanket in the atmosphere that protectsus from the harmful high energy UV radiations coming from the sun. But it has been observed that some harmful air pollutants like chlorofluorocarbons are causing hole in this protective layer. What does this ‘ozone hole’ exactly mean?"

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Ozone layer is a protective blanket in the atmosphere that protectsus from the harmful high energy UV radiations coming from the sun. But it has been observed that some harmful air pollutants like chlorofluorocarbons are causing hole in this protective layer. What does this ‘ozone hole’ exactly mean?"