Practice Importance Of The Atmosphere (4.4) - Atmosphere

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10 questions

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Exercise
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Quiz
4 questions · about 3 min · pass mark 70%. Hints available.
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6 sample questions

Question 1.
What gases does the atmosphere primarily provide for breathing?
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Think about the gases we inhale.
Question 2.
What layer of the atmosphere absorbs harmful UV radiation?
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Consider which layer is responsible for protection against the sun.
3Question 3.
What percentage of the atmosphere is made up of oxygen?
- 21%
- 30%
- 15%
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It's the second gas in the atmosphere.
4Question 4.
The ionosphere is important for what function?
- True
- False
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Think about how radio signals work.
Question 5.
If the atmosphere did not exist, how would the lack of protection from sun exposure affect living organisms?
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Consider the conditions on Mars, which has a very thin atmosphere.
Question 6.
Analyze how human activities might affect the balance of gases in the atmosphere and what implications this has for climate.
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Think about the impacts of pollution and carbon emissions.

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