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Author Quiz
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1

A rock that experiences plastic strain in response to stress
A)returns to its original shape when the stress is relieved.
B)cannot return to its original shape when the stress is relieved.
C)cracks or fractures.
D)fails to reach its elastic limit.
2

The point of initial rock movement along a fault during an earthquake is called the
A)epicenter.
B)focus.
C)strike.
D)fault zone.
3

Glaciers form when
A)the temperature remains below freezing.
B)snow accumulates to form ice, which begins to flow.
C)a summer climate does not occur.
D)a solid mass of snow moves downhill under the influence of gravity.
4

A stream in its youth exhibits which of the following sets of characteristics?
A)broad meanders and a wide floodplain
B)few rapids and waterfalls and a U-shaped valley
C)steep gradient and a V-shaped valley
D)low gradient and the presence of oxbow lakes
5

A road cut shows layers of sedimentary rock that are uptilted. From this observation one could conclude that the rocks
A)have been subjected to deformational stress.
B)were formed by deposition of sediment on a sloping surface.
C)were formed on land instead of under water.
D)None of these is correct.
6

A major assumption of the principle of uniformitarianism is that
A)catastrophic events do not happen to rocks.
B)the geologic processes you see today are the same as those that happened in the past.
C)of superposition.
D)All of these can be used.
7

Layers of rocks that are deeply buried are under pressure and warm, so external forces tend to
A)shatter the layers to pieces.
B)split and separate the rocks.
C)fold and deform the layers.
D)move, but not change the layers.
8

Layers of rock that are not deeply buried are relatively cool and not under pressure, so external forces tend to
A)shatter the layers to pieces.
B)split and separate the rocks.
C)fold and deform the layers.
D)move, but not change the layers.
9

Most earthquakes occur
A)in patterns of long narrow belts.
B)in no pattern, happening everywhere.
C)along costal regions of all oceans.
D)mostly in the center of continents.
10

Most major mountain ranges were probably created from
A)the combined effect of weathering and erosion.
B)relaxation of external forces.
C)compressional external forces.
D)the sinking of a tectonic plate on another continent.





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