Which is one way that waves erode coastlines?

Question

Back-and-forth movement loosens sediment and rock.
Large rocks are picked up and deposited in new areas.
Continuous impacts build up sediment and rock.
Loose sediment is picked up and blown to other locations.

Answer 1

One way that waves erode coastlines is through the process of back-and-forth movement loosening sediment and rock. This action helps to break down and wear away coastal materials over time.