Question

which is not an erosional features of sea waves​

Answer 1

Sea beaches are not the erosional feature of sea waves. They are formed due to the depositional activities of sea waves.

Answer 2

Answer:

Landforms From Wave Erosion

Wave-cut cliffs form when waves erode a rocky shoreline. They create a vertical wall of exposed rock layers.

Sea arches form when waves erode both sides of a cliff. They create a hole in the cliff.

Sea stacks form when waves erode the top of a sea arch. This leaves behind pillars of rock.