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Polar Vortex and Ozone Depletion

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In Antarctic winter, the stratosphere above Antarctica gets colder than all other locations on Earth. Strong winds in the stratosphere begin to blow clockwise around the continent creating a large ring of moving air, called the polar vortex. The polar vortex prevents air​ from mixing with the rest of the atmosphere.

Which of the following BEST describes how the polar vortex increases ozone depletion from September through December?

A

The cold temperatures in the polar vortex allow chlorine molecules to accumulate and break down ozone molecules.

B

The polar vortex allows chlorine molecules to accumulate during the Antarctic winter and when Antarctic spring approaches the increased UV radiation causes an increased level of ozone depletion.

C

The warm air in the polar vortex allows more infrared radiation to reach the ozone layer which increases the ozone hole.

D

The polar vortex allows more greenhouse gasses to accumulate during the Antarctic winter and when Antarctic spring approaches the infrared radiation causes an increased level of ozone depletion.

E

During the Antarctic spring, ​the sun rises and the absorption of solar radiation by ozone begins to heat the polar vortex causing more chlorine molecules to accumulate which will break down ozone molecules.