Structure and Composition of the Atmosphere Answers
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Which gas in Earth’s atmosphere forms ozone?
A
oxygenB
nitrogenC
water vaporD
carbon dioxide2
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Which word describes the amount of matter an object contains?
A
altitudeB
densityC
massD
pressure3
Which gas is most abundant in Earth’s atmosphere?
A
oxygenB
nitrogenC
water vaporD
carbon dioxide
5
Which phrase describes density?
A
height of a point above sea levelB
force pushing on an area or a surfaceC
amount of mass in a certain volumeD
amount of matter an object contains6
Which atmospheric layer prevents meteoroids from reaching Earth’s surface?
A
mesosphereB
stratosphereC
thermosphereD
troposphere7
Which correctly lists three characteristics that are used to describe air?
A
altitude, density, radiationB
density, radiation, massC
mass, pressure, densityD
pressure, altitude, radiation8
Which atmospheric layer gets warmer as altitude increases and contains the ozone layer?
A
mesosphereB
stratosphereC
thermosphereD
troposphere9
As altitude increases, what happens to air pressure?
A
It fluctuates.B
It increases.C
It decreases.D
It stays the same.10
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.Did you find these answers helpful?
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