Which of the following statements is correct? (a) Ozone hole is a hole formed in stratosphere fr...

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Which of the following statements is correct?
(a) Ozone hole is a hole formed in stratosphere from which ozone oozes out.
\( P \)
(b) Ozone holes is a hole formed in the troposphere from which ozone oozes out
(c) Ozone hole is thinning of ozone layer of stratosphere at some places
W
(d) Ozone hole means vanishing of ozone layer around the earth completely
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