A ridge of material that rides along the middle of a glacial ice stream is called a _____ moraine.
A)terminal
B)recessional
C)medial
D)lateral

Question

Quizplus · Accepted Answer

A medial moraine is formed when two glaciers merge and their lateral moraines combine in the middle of the glacier, creating a ridge down the center. Terminal moraines mark the end of a glacier's advance, recessional moraines are formed when a glacier pauses during its retreat, and lateral moraines form along the edges of the glacier. None of these describe the ridge in the middle of a glacier.

A Ridge of Material That Rides Along the Middle of a Glacial