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Krithika devi
's Polls
Science
Ozone hole refers to?
hole in ozone layer
0 votes (0%)
hole in ozone layer
decrease in the ozone layer in troposphere
0 votes (0%)
decrease in the ozone layer in troposphere
decrease in thickness of ozone layer in stratosphere
1 vote (100%)
decrease in thickness of ozone layer in stratosphere
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Wolmal
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