To what extent is erosion the main physical process responsible for coastal landforms

"Destructive waves" is the right approach.

Explanation:

Coastal erosion refers to something like the coastal procedure involved throughout the removal of sedimentary rocks as well as components across the coastline. Those same eroded components are sooner or later transferred to different sites by ocean currents. Throughout terms of direction, destructive waves seem to be the primary culprit of coastal erosion even though individuals start breaking down rock formations across the coastline.

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