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Questions and Answers
What is the main reason for the formation of the ozone hole over Antarctica?
What is the main reason for the formation of the ozone hole over Antarctica?
- Higher ozone levels in the stratosphere
- Increased presence of nacreous clouds
- Thicker ozone layer over Earth
- Changes in the Antarctic polar vortex (correct)
Which gas is NOT considered a major ozone-depleting substance?
Which gas is NOT considered a major ozone-depleting substance?
- CFCs
- Chlorine
- Bromine
- Nitrogen (correct)
What is the average thickness of the ozone layer over Earth in Dobson Units?
What is the average thickness of the ozone layer over Earth in Dobson Units?
- 200 Dobson Units
- 300 Dobson Units (correct)
- 350 Dobson Units
- 250 Dobson Units
What are Polar Stratospheric Clouds (PSCs) known as?
What are Polar Stratospheric Clouds (PSCs) known as?
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Which organization stated that the ozone layer is on track to recover within 4 decades?
Which organization stated that the ozone layer is on track to recover within 4 decades?
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What process results in the destruction of ozone in the stratosphere?
What process results in the destruction of ozone in the stratosphere?
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