Question

Explain how soil pollution and soil erosion could be prevented.​

Answer 1

Prevention of soil pollution can be done by (i) use of manures instead of synthetic fertilisers. ... (iv) industrial waste should be treated before release in soil. Prevention of soil erosion can be done by (i) afforestation that is large scale planting in place of cut down forests. (ii) avoiding overgrazing of grasslands.

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Answer 2

Answer:

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.

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.

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