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Doctors Medicines MCQs Q&A

Which statement is correct regarding Ozone Hole? 

I. Ozone destruction rate is equal to the its formation rate 

II. Ozone formation and destruction keep on happening 

III. Ozone destruction rate is higher than its formation rate 

(a) I & II (b) II & III (c) Only III (d) Only I

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(b) II & III

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