Structure and Composition of the Atmosphere Answers
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Which is one way that Earth’s atmosphere supports life?
A
It filters out oxygen.B
It keeps Earth warm.C
It increases UV radiation.D
It provides a solid shield.4
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As altitude increases, what happens to air pressure?
A
It fluctuates.B
It increases.C
It decreases.D
It stays the same.5
Which word describes the amount of matter an object contains?
A
altitudeB
densityC
massD
pressure6
Which atmospheric layer prevents meteoroids from reaching Earth’s surface?
A
mesosphereB
stratosphereC
thermosphereD
troposphere7
The image shows a representation of mountains of various heights, numbered 1, 2, and 3. The plain is labeled number 4.
A
1B
2C
3D
48
Which gas is most abundant in Earth’s atmosphere?
A
oxygenB
nitrogenC
water vaporD
carbon dioxide9
Which gas in Earth’s atmosphere has increased over time due to burning fossil fuels?
A
oxygenB
nitrogenC
water vaporD
carbon dioxide10
Which gas in Earth’s atmosphere forms ozone?
A
oxygenB
nitrogenC
water vaporD
carbon dioxideDid you find these answers helpful?
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