Environmentalmedium · Past Paper
What is the main reason why the 'hole' in the ozone layer is mostly over Antarctica?
AMore factories in Antarctica
BExtreme cold and Polar Stratospheric Clouds
CLack of sunlight
DHigh wind speeds at the equator
✓ Correct Answer: B — Extreme cold and Polar Stratospheric Clouds
Extremely low temperatures in the Antarctic winter allow for the formation of Polar Stratospheric Clouds, which provide surfaces for chemical reactions that destroy ozone.
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