ECOLOGY
HUMANS AND THE BIOSPHERE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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removing trees with their roots, heavy rains, strong winds
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planting crops
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leaving the roots of crops in the soil after harvest
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Detailed explanation-1: -urban developments-can cause severe soil erosion if the land is unsuitable to be built on and developments run through existing drainage lines. mining and exploration activities-interfere with the natural drainage of the landscape which can cause erosion and siltation of waterways.
Detailed explanation-2: -Significant wind erosion occurs when strong winds blow over light-textured soils that have been heavily grazed during periods of drought. Wind erosion is also a natural process.
Detailed explanation-3: -Soil erosion decreases soil fertility, which can negatively affect crop yields. It also sends soil-laden water downstream, which can create heavy layers of sediment that prevent streams and rivers from flowing smoothly and can eventually lead to flooding.
Detailed explanation-4: -It is the natural process of wearing away topsoil, but human activities have accelerated the process. It is usually caused due to the removal of vegetation, or any activity that renders the ground dry. Farming, grazing, mining, construction and recreational activities are some of the causes of soil erosion.