Which of the following is true of glacial movement?
A)the rate of surface motion is usually identical to the basal slip rate.
B)the internal flow just below the surface is greater than the basal flow.
C)all glaciers move just a few centimeters per year.
D)the basal ice layer does not move downslope.
E)greatest erosion occurs at the ice surface.

Question

Quizplus · Accepted Answer

The internal flow just below the surface is greater than the basal flow. This is because the weight of the ice causes pressure at the base which results in basal slip, while the internal ice can deform and flow more easily.

Which of the Following Is True of Glacial Movement