At the base of a glacier, the ice moves by______ .
A) sliding and ductile flow
B) ductile flow and fracturing
C) fracturing
D) fracturing and sliding

Question

Quizplus · Accepted Answer

At the base of a glacier, the weight of the ice causes it to deform and flow in a ductile manner. However, the underlying surface may not always be smooth and may also include patches of water. In those cases, the ice may slide over the surface as well. Therefore, the ice at the base of a glacier moves by sliding and ductile flow.

At the Base of a Glacier, the Ice Moves By______