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The Atmosphere And Causes Of Weather
Test Description: Winds the causes
Instructions: Answer all questions to get your test result.
1) Narrow belts of winds that can reach 400 km/h are called
A
convection streams.
B
jet streams.
C
jet currents.
D
convection currents.
2) What is the atmosphere?
A
the air we breathe
B
carbon dioxide
C
a mixture of gases
D
mostly oxygen
3) About how much of Earth’s atmosphere is oxygen?
A
35%
B
78%
C
20%
D
50%
4) Wind occurs because of differences in
A
latitude.
B
humidity.
C
air pressure.
D
nitrogen levels.
5) What causes local winds?
A
trade winds
B
global winds
C
temperature differences
D
easterlies
6) Wind occurs because air tends to move from regions of higher to lower
A
altitude
B
pressure.
C
humidity.
D
nitrogen levels.
7) Air pressure decreases as what increases?
A
radiation
B
altitude
C
water vapor
D
pollution
8) Which of the following shows the composition of Earth’s atmosphere?
A
nitrogen: 78%; oxygen: 11%; other gases: 11%
B
nitrogen: 78%; oxygen: 21%; other gases: 1%
C
nitrogen: 98%; oxygen: 1%; other gases: 1%
D
nitrogen: 68%; oxygen: 21%; other gases: 11%
9) Troposphere is...
A
coldest layer, temperature decreases as altitude increases
B
layered gases, thin air, little moisture
C
densest layer, contains almost 90% of the atmosphere’s mass, where we live
D
lack of particle density, little thermal energy transfer
10) What causes differences in air pressure around the Earth?
A
Warm air sinks at the equator and cold air rises at the poles.
B
Warm air rises at the equator and cold air sinks at the poles.
C
Warm air rises at the equator and cold air rises at the poles.
D
Cold air rises at the equator and warm air sinks at the poles.
11) Narrow belts of winds that can reach 400 km/h are called
A
convection streams.
B
convection currents.
C
jet currents.
D
jet streams.
12) What causes differences in air temperatures at different altitudes?
A
mainly the way gases radiate light
B
mainly the way gases absorb solar energy
C
mainly the way air radiates solar energy
D
mainly the way moisture moves through the atmosphere
*select an answer for all questions
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