Explain how soil pollution and soil erosion could be prevented.

Prevention of Soil Pollution:
1. Use manures instead of chemical fertilizers.
2. Industrial waste should be treated before release.
3. Avoid use of polythene and plastic or they should not get mixed in soil.
Prevention of Soil Erosion:
1. Afforestation: large scale planting in place of cut down forests.
2. Avoiding over-grazing of grass lands.
3. Use of step-farming in hill regions.

Prevention of soil Pollution 

1. Use manures instead of chemical fertilizers. 

2. Industrial Waste should be treated before release. 

3. Avoid use of polythene and plastic or they should not get mixed in soil. 

Prevention of soil erosion 

1. Afforestation large scale planting in place of cut down forests. 

2. Avoiding over – grazing of grass lands. 

3. 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.