Question

which is an example of erosion by water? choose 1 answer: a a river transports sand and silt downstream. b ocean waves deposit sediment onto a beach. c rainwater reacts with minerals in a rock.

Explanation:

Water erosion involves water moving weathered rock or sediment. Option A describes a river moving sand/silt, which is water erosion. Option B is deposition (dropping sediment, not erosion). Option C is chemical weathering, not erosion.

Answer:

A. A river transports sand and silt downstream.