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Standard VIII
Biology
Question
Define soil erosion.
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Solution
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Soil erosion is the loss of top fertile layer of soil either by wind or by water.
It is of three types:
Sheet Erosion: Uniform removal of the topsoil just like a sheet.
Rill Erosion: Heavy water flow cause rill in Land. Rill erosion is the removal of soil by concentrated water running through little
streamlets
Gully Erosion: Rill will enlarge as Gullies and land will be disordered.
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