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Q: What is soil erosion? A: The wearing away of topsoil by wind or water.
Q: How does deforestation cause soil erosion? A: It reduces interception and root binding, increasing runoff and wind exposure.
Q: How does overgrazing cause soil erosion? A: It removes vegetation cover and compacts soil, increasing runoff.
Q: How does over-cultivation cause soil erosion? A: Soil is not left fallow, reducing fertility and making it more erodible.
Q: How does population increase contribute to soil erosion? A: It increases settlement size and food demand, causing overgrazing and over-cultivation.
Q: How does over-abstraction of groundwater increase erosion? A: It dries soil, making it easier to erode.
Q: What is salinisation? A: Accumulation of salts in soil when groundwater evaporates, making it toxic for crops.
Q: What is desertification? A: When semi-arid areas become desert-like due to natural and human causes.
Q: How does soil erosion contribute to desertification? A: It removes nutrients, preventing plant growth.
Created by: kkkkkkkkkkkkkk
 

 



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