Questions and Answers
During which period of the day does the temperature drop low enough to form polar stratospheric clouds (PSCs) over Antarctica?
Night
Which layer of the atmosphere is responsible for causing significant damage to the ozone layer above Antarctica?
Stratosphere
What chemical reaction occurs on the surface of polar stratospheric clouds (PSCs) over Antarctica?
Conversion of chlorine to chlorine dioxide
What happens to the ozone layer when sunlight returns in September over Antarctica?
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At what altitude above Antarctica does the polar vortex separate from the westerly winds during the night?
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Which region is the ozone hole located above?
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How many Dobson units is the total ozone in the ozone hole?
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What is the unit of measurement used to quantify the total ozone in the ozone hole?
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