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MB Ch 8
Test Description: Ch 8 Air
Instructions: Answer all questions to get your test result.
1) Air is about ___________ % nitrogen
A
21
B
78
C
75
D
.03
2) The layers of the atmosphere next to the ground is the _______________
A
mesosphere
B
stratosphere
C
troposhpere
D
thermosphere
3) The layer of the atmosphere that extends into space is the ____________
A
thermosphere
B
troposhpere
C
stratosphere
D
mesosphere
4) As the amount of water vapor increases, the air\'s density _______
A
decreases
B
increases
5) ____________ can result when an air mass rapidly cools, causing water vapor to ocondense
A
thunder
B
rain or snow
C
a wave front
D
none of the answers is correct
6) About _____% of the sunlight that reaches the top of the armosphere is absorbed by the Earth\'s surface
A
66
B
50
C
25
D
75
7) If the Earth consistently absorbed more energy from the sun than it radiated into space
A
the Earth would grow hotter and hotter
B
there would be no noticable effect
8) The sun heats the Earth unevenly because
A
Earth is a sphere and its orbit it elliptical
B
Earth is tilted on its axis
C
All the answers are correct
D
Earth has a solid core
9) Convection is caused by
A
warm air rising and cool air flowing in to replace it
B
all of the answers are correct
C
large flock of migrating birds
D
changes in the wind
10) The Coriolis Effect is the tendency for the path of a moving object to shift to the right in the Northern Hemesphere and to the left in the Southern Hemisphere
A
true
B
false
*select an answer for all questions
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