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Earth's Atmosphere
Test Description: Earth's atmosphere
Instructions: Answer all questions to get your test result.
1) What gas makes up most of the atmosphere?
A
oxygen
B
carbon dioxide
C
ozone
D
nitrogen
2) Clouds and weather occur in which layer?
A
thermosphere
B
stratosphere
C
exosphere
D
troposphere
3) The ozone layer is found in the ...
A
mesosphere
B
thermosphere
C
stratosphere
D
troposphere
4) What happens in the mesosphere?
A
the Northern Lights
B
clouds form
C
meteors burn up
D
the jet stream moves
5) What happens to the air pressure as you climb a mountain?
A
air pressure stays the same
B
air pressure increases
C
air pressure decreases
6) 21% of the atmosphere is made up of ..
A
oxygen
B
nitrogen
C
carbon dioxide
D
ozone
7) Satellites orbit in the ...
A
mesosphere
B
exosphere
C
thermosphere
D
troposphere
8) What layer comes next? Troposphere, Stratosphere , _________
A
thermosphere
B
mesosphere
C
outer space
D
exosphere
9) In what layer of the atmosphere do Northern Lights occur?
A
exosphere
B
thermosphere
C
mesosphere
D
stratosphere
10) Where is air pressure the greatest? (most air pressure)
A
at the top of the mountain
B
in the clouds
C
at the halfway point on a mountain
D
at the bottom of a mountain
11) Which statement describes the molecules in warm air?
A
air molecules are spread out
B
air molecules do not move
C
air molecules are close together
D
there are more air molecules
12) What statement describes cold air molecules?
A
air molecules are moving very fast
B
air molecules are close together
C
there are less air molecules
D
air molecules are spread out
*select an answer for all questions
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