Erosion is the removal and transport of materials (typically soil and rocks) from one location to another. This generally takes place by natural means and hence is classified based on the agent of erosion, as: water erosion, wind erosion, glacier erosion, sea erosion, etc. For each of these types of erosion, there can be a number of forms of erosion. For example, deflation and accumulation are two forms of wind erosion. In the case of deflation, wind is strong enough to remove the top soil layer, thus baring the underlying hard strata. The removed sand is deposited elsewhere and is called accumulation. The accumulation of materials, thus transported, can severely affect the region, especially if the accumulated material has a significant thickness. Similarly, for water erosion, different forms could be sheet erosion, splash erosion, linear erosion, etc.
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