JSS3: BASIC SCIENCE - 1ST TERM
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Family Traits | Week 17 Topics|1 Quiz
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Environmental Hazards I - Soil Erosion | Week 23 Topics
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Environmental Hazards I - Flooding | Week 35 Topics|1 Quiz
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Environmental Hazards II - Bush Burning | Week 44 Topics
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Environmental Hazards II - Deforestation | Week 54 Topics|1 Quiz
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Environmental Hazards III - Desertification | Week 64 Topics|1 Quiz
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Environmental Hazards III - Description of the Ozone Layer and its Location in the Atmosphere | Week 74 Topics|1 Quiz
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Drug and Substance Abuse | Week 84 Topics|1 Quiz
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Resources from Living Things | Week 94 Topics
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Resources from Non-Living Things | Week 102 Topics|1 Quiz
Quizzes
How to Prevent & Control Soil Erosion
Topic Content:
- How to Prevent Soil Erosion
- How to Control Soil Erosion
How to Prevent Soil Erosion:
Soil erosion can be prevented using the following methods;
1. Mulching: This involves covering the ground with dried grasses. Dried grasses, spread over the surface of the soil, reduce the impact of raindrops striking the soil and cover it from the wind.

2. Planting of Cover Crops: Planting of cover crops like mucuna bracteata, buckwheat, rye, wheat, corn, barley, oats, etc, prevent water and wind from carrying soil particles away.

3. Crop Rotation: On sloping lands, crop rotations can help reduce soil erosion. Plants, like corn and grain crops, remove nitrogen and nutrients from the soil. Rotation of these plants, with alfalfa and other legumesA legume is any plant that bears its fruit inside a pod. Legume is an umbrella term that includes beans and pulses. Thus, all beans are considered a legumes, but not... More, will enable the land to restore the soil nutrients, lost through absorptionAbsorption is the movement of digested food molecules from the digestive system into the blood (glucose and amino acids) and lymph (fatty acids and glycerol). The small intestine absorbs most of... More by the plants.
Crop rotation allows the land to regenerate and rejuvenate its self-nutrients, without having to apply more nutrients through the use of fertilizers.

4. Contouring of loping ground: This involves making ridges across the slope to prevent the downhill flow of water.

5. Strip Cropping: Involves planting crops, that provide vegetation cover for the soil, in alternate strips across a slope.

6. Planting of Shelter Belts: A shelterbelt, or windbreaker, involves planting usually made up of one or more rows of trees or shrubs, planted in such a manner as to provide shelter from the wind, and to protect soil from erosion.

How to Control Soil Erosion:
1. AfforestationAfforestation is the establishment of a forest or stand of trees (forestation) in an area where there was no recent tree cover. More: This involves the planting of trees on exposed land to prevent wind and soil erosion.
2. Avoid bush burning and overgrazing.
3. Construction of water channels such as ditches, drainage, or dams across, gullies.