Where would you likely find glaciers that could only move by plastic flow above the bed?
A) in polar regions or with extreme cold where ice is frozen to the bedrock
B) near the terminus of any ice sheet
C) in high elevation tropical settings
D) on ice shelves

Question

Quizplus · Accepted Answer

Glaciers in polar regions or with extreme cold where ice is frozen to the bedrock can only move by plastic flow, as the temperatures are too low for basal sliding to occur. The ice remains frozen to the bedrock, preventing it from sliding, thus movement is primarily through deformation of the ice itself.

Where Would You Likely Find Glaciers That Could Only Move