GyanGram
ATTEMPT · ENVIRONMENT · PRELIMS 2011
The formation of the ozone hole in the Antarctic region has been a cause of concern. What could be the reason…
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The formation of the ozone hole in the Antarctic region has been a cause of concern. What could be the reason for the formation of this hole?
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• Correct Answer: B
• The Antarctic polar vortex isolates cold air, enabling Polar Stratospheric Cloud formation that catalyzes CFC-derived chlorine into ozone-destroying forms.
• Spring sunlight triggers rapid ozone destruction; tropospheric turbulence and methane are not primary causes.
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