Question

what does erosion do?
○ cements sediments
○ forms rocks
○ breaks rocks apart
○ moves bits of rock and soil

Explanation:

Erosion is the process by which natural forces (like water, wind, etc.) transport bits of rock and soil from one place to another. "Cements sediments" is related to cementation (part of lithification), "forms rocks" is not erosion's role, "breaks rocks apart" is weathering. So the correct description of erosion is moving bits of rock and soil.

Answer:

moves bits of rock and soil