Which of the following are causes of coastal erosion? Check all that apply.Beach grasses and other plants trap windblown sand.Wave action carves away the coastline.Groundwater under pressure is forced to Earth’s surface.Artificial structures stop the natural flow of sand along the coast.Underground caves collapse as bedrock is dissolved.

Wave action wears away rock and sediment along the shore, so it causes coastal erosion. Artificial structures can interrupt the natural movement of sand, leading to erosion in some coastal areas. Beach grasses trap sand and help stabilize the coast, while groundwater forced to the surface and cave collapse are not causes of coastal erosion in this context.

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