Earth Science Regents 2025 – 400 Free Practice Questions to Pass the Exam

Question: 1 / 400

Which of the following characteristics describes glacial deposits?

Sorted and layered

Unsorted and layered

Unsorted and not layered

Glacial deposits are primarily characterized by being unsorted and not layered. This occurs because glaciers carry a wide variety of sediment sizes, from fine silt to large boulders, all of which are mixed together as the ice moves. When glaciers melt, they drop all the material they have picked up without any sorting, leading to a deposit known as till. This contrasts with sediments transported by wind or water, which tend to be sorted by size and layered according to their method of deposition.

Thus, the characteristic of being unsorted and not layered accurately describes how material is deposited by glaciers, reflecting the mixed composition and chaotic arrangement that glaciers produce as they advance and retreat.

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Sorted by size

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