In your own words please explain.. no copy and pasting

Science
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Several U.S. laws of environmental protection limit activities that can cause soil erosion. What are four ways that human activities can lead to soil erosion? Explain how each of these affects the soil.

Mar 26th, 2015

Overgrazing occurs when farmers stock too many animals such as sheep, cattle or goats on their land.  The animals damage the soil surface by eating the vegetation and either digging into wet soil or compacting dry soil with their hooves. 

Overcropping is when the land is being continuously under cultivation and is not allowed to lie fallow between crops.  This constant farming of the land reduces the soils ability to produce valuable humus for soil fertility as it is constantly being ploughed or stripped for crop growth. 

Deforestation is the cutting down of large areas of forests leaving an open, exposed landscape.  Deforestation occurs for many reasons such as the sale of wood, charcoal or as a source of fuel, while cleared land is used aspasture for livestock, plantations of commodities, and settlements.

Mar 26th, 2015

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Mar 26th, 2015
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