1.

3 _ ( 4 - 5 ) = (3 _ 4 ) - (3 _ 5 )

Answer»

-step explanation:Soil erosion is the displacement of the upper layer of soil; it is a FORM of soil degradation. This natural process is caused by the DYNAMIC activity of erosive agents, that is, WATER, ice, snow, air, PLANTS, animals, and HUMANS.



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