The factors that pollute the soil are as follows:
- Dumping of household waste products into the soil.
- Excessive use of chemical fertilizers and pesticides to the soil.
- Industrial waste mainly contains lead, mercury, zinc, copper, etc. They are dumped on the soil which degrades the quality of the soil.
- Acid rain increases the acidic property of soil.
- Dust particles from mine industries also pollute the land.