Soil Pollution.
Soil pollution occurs due to the presence of unwanted and harmful substances in the soil.
The soil is polluted by the following human activities:
1. Increased use of pesticides and chemical fertilizers. We use more pesticides and chemical fertilizers for higher crop yields. All these pesticides and chemical fertilizers remain in the soil due to their non-biodegradable nature which leads to soil contamination.
2. Waste of Industry. Many factories dumps their factory toxic waste in the surrounding areas, which results in soil pollution.
3. Polythene and plastic waste. Many chemicals are used in the manufacture of plastics and polythene. All plastics and polythene are non-biodegradable. When we throw plastic or polythene waste here and there then they remain lying in the soil due to which the soil becomes polluted.
