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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
75
B
21
C
78
D
.03
2) The layers of the atmosphere next to the ground is the _______________
A
stratosphere
B
mesosphere
C
thermosphere
D
troposhpere
3) The layer of the atmosphere that extends into space is the ____________
A
stratosphere
B
troposhpere
C
thermosphere
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
a wave front
B
thunder
C
rain or snow
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
25
C
75
D
50
7) If the Earth consistently absorbed more energy from the sun than it radiated into space
A
there would be no noticable effect
B
the Earth would grow hotter and hotter
8) The sun heats the Earth unevenly because
A
All the answers are correct
B
Earth has a solid core
C
Earth is a sphere and its orbit it elliptical
D
Earth is tilted on its axis
9) Convection is caused by
A
all of the answers are correct
B
large flock of migrating birds
C
changes in the wind
D
warm air rising and cool air flowing in to replace it
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
false
B
true
*select an answer for all questions
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