Asked by Reagan Teston on May 14, 2024
Verified
The margins of glaciers are usually darker than the interior primarily because:
A) shearing causes the ice to expel air and become darker
B) glaciers are transparent so the underlying bedrock is visible
C) the sides are moving faster than the interior of the glacier
D) the sides have a higher concentration of rocks and other debris
E) all of these
Glaciers
Large, slow-moving masses of ice formed from compacted layers of snow, which move under their weight and shape the land beneath.
- Understand the formation and features of glaciers.
Verified Answer
JA
Jennifer AquijeMay 18, 2024
Final Answer :
D
Explanation :
The margins of glaciers are typically darker than the interior because they contain a higher concentration of rocks, dirt, and other debris. This debris is picked up and carried along by the glacier as it moves, accumulating more at the edges where the glacier interacts with the surrounding landscape.
Learning Objectives
- Understand the formation and features of glaciers.