The main difference between sand dunes and ripple marks is
A) ripple marks are only caused by water.
B) ripple marks are larger than sand dunes.
C) sand dunes are larger than ripple marks.
D) ripple marks are stationary.
Correct Answer:
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Q169: Sand dunes form as wind
A)disperses sand.
B)blows sand
Q170: The direction of ice flow can be
Q171: Erosion by alpine glaciers creates
A)V-shaped valleys.
B)U-shaped valleys.
C)drumlins.
D)moraines.
Q172: A terminal moraine marks the
A)farthest a glacier
Q173: Glacial striations are caused by
A)rocks embedded in
Q175: What is the difference between a roche
Q176: Headward erosion of a group of cirques
Q177: The two ways that glacial drift is
Q178: The most important agent of erosion is
A)water.
B)glaciation.
C)wind.
D)wave
Q179: How do glaciers affect underlying rock?
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