Explain how soil pollution and soil erosion could be prevented
Answers
Answer:
SOIL POLLUTION
1. The persistent build-up of toxic compounds in the soil is defined as soil pollution.
PREVENTION OF SOIL POLLUTION
To prevent soil pollution, its causes must be controlled.
1. Reduce the use of plastics: Plastics and polythene bags destroy the fertility of the soil. Hence, these should be disposed off properly and if possible, their use should be avoided.
2. Industrial pollutants: Some waste products from industries and homes pollute the soil. These pollutants should be treated chemically to make them harmless before they are disposed off.
3. Insecticides: Other pollutants of soil include pesticides and insecticides.
4. Use manures instead of chemical fertilizers.
5. Industrial waste should be treated before release.
Therefore, the excessive use of these substances should be avoided.
SOIL EROSION
1. Removal of the upper fertile layer of the soil(topsoil) by strong wind and flowing water is known as soil erosion.
PREVENTION OF SOIL EROSION
Following steps can be taken to reduce soil erosion.
1. Mass awareness to reduce deforestation for industrial purposes.
2. Helping local people to regenerate the degrading forest.
3. Planting trees.
4. Avoid over-grazing of grasslands.
5. Use of step-farming in hill regions.
Answer:
Soil pollution refers to the contamination of soil with anomalous concentrations of toxic substances.
Example: Soil contamination that includes high levels of benzene raises the risk of leukaemia.
Soil pollution can be controlled by the following measures:
By reducing the use of plastics, we can reduce soil pollution.
By controlling the use of chemical fertilisers and pesticides, we can control soil pollution.
Treating industrial waste before releasing.
Soil erosion is the natural process in which the topsoil of a field is carried away by physical sources such as wind and water. Soil erosion can be controlled by the following measures:
Plant trees on barren lands to limit erosion of soil.
Add mulch and rocks to prevent the plants and grass underneath to prevent soil erosion.
Mulch matting can be used to reduce erosion on the slopes.
Explanation:
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