How the agriculture, industrial, urban and nuclear waste can contribute to the soil pollution?

Soil pollution mainly occurs due to the following:

1.Industrial wastes

2.Urban wastes

3.Agricultural practices

4.Radioactive pollutants

5.Biological agents

Industrial wastes–Disposal of Industrial wastes is the major problem for soil pollutionSources: Industrial pollutants are mainly discharged from various origins such as pulp and paper mills, chemical fertilizers, oil refineries, sugar factories, tanneries, textiles, steel, distilleries, fertilizers, pesticides, coal and mineral mining industries, drugs, glass, cement, petroleum and engineering industries etc.Effect:These pollutants affect and alter the chemical and biological properties of soil. As a result, hazardous chemicals can enter into human food chain from the soil or water, disturb the biochemical process and finally lead to serious effects on living organisms.

Urban wastes–Urban wastes comprise of both commercialand domestic wastes consisting of dried sludge and sewage. All the urban solid wastes are commonly referred to as refuse.Constituents of urban refuse: This refuse consists of garbage and _______ _________ _______ ________ ________ ____.
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