Typically when a glacier recedes,the deposited material leaves behind
A)material of a wide range of sizes,until streams moving around the area begin to sort the material by size.
B)material of a wide range of sizes only after streams moving around the area begin to mix together the particles of different sizes.
C)primarily clay-sized material because material bigger than clay cannot be picked up by ice easily.
D)primarily sand-sized materials and larger because the ice tends to crush the finer materials into a powder.

Question

Quizplus · Accepted Answer

When a glacier recedes, the deposited material is unsorted and composed of a wide range of sizes, from boulders to fine particles. It is only after streams begin to flow around the area that the material is sorted by size as the water carries away smaller particles and leaves behind larger ones. This process of sorting by size is called sediment transport or deposition, and it is why rivers are often characterized by gravel or sand bars.

Typically When a Glacier Recedes,the Deposited Material Leaves Behind