Erosional plains are developments due to natural weathering of glacier activity, wind movement or water torrent on the earth’s surface and are partitioned on the principle of the erosional agent type.
After weathering processes have had their actions on the earth materials making up the surface of the earth, the geomorphic agents like running water, ground water, wind, glaciers, waves perform erosion.
Deposition follows erosion and the depositional surfaces too are ultimately subjected to erosion.
Many varieties of land-forms develop by the action of each of the geomorphic agents.