Answers

2015-05-21T15:41:09+05:30
Soil erosion is the removal of soil by the forces of nature like wind and water,more rapidly than the various soil forming process can replace it.                                (or simply)  Soil erosion is washing or blowing away the top layer of soil.
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2015-05-21T15:43:53+05:30
The removal of top most layer of soil or removal of fertility of soil by various natural/man-made agents
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soil erosion is washing or blowing away (by wind or water) of the top layer of the soil