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Crops and other vegetation act to reduce weathering and erosion in a number of ways.

1. Their leaves or stalks act to intercept rain drops reducing the of amount of water reaching the soil and also it's velocity.

2. Their roots act to mechanically bind the soil together.

3. Their roots also draw water from the soil. This can lead to negative pore water pressures (known as soil suction) which in turn helps the individual soil grains bind together.

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Q: How do crops prevent weathering and erosion?
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