Name any two sources of soil pollution 2 mark
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Answer:
What is Soil Pollution?
Soil pollution is the build-up of chemicals, radioactive materials, toxic compounds, and disease-causing agents in the soil to levels that can cause adverse effects on plant growth and damage to both human and animal health. The pollution of the soil is either caused by natural activities or human actions that destroy its properties, such as structure, composition, and soil biota.
Naturally, the soil contains contaminants such as metals, salts, inorganic ions, and organic compounds that are mainly formed through soil microbial activity. These natural compounds (contaminants) rarely build up to generate pollution.
1. INDUSTRIAL SOURCES
Industrial wastes or byproducts are among the leading causes of soil pollution. They can be in the form of gas, liquid, or solid substances. Carbon dioxide, nitrogen dioxide, sulfur dioxide, and carbon monoxide are some of the gases produced from industrial activities that cause considerable pollution to soil indirectly.
These byproducts combine with the rainwater causing the production of acidic rain, which changes the soil pH and, after that, affects the overall crop production. Industries also dump their solid and liquid effluents into the soil.
2. Urban Waste
Most developing countries have a problem controlling the disposal of municipal garbage. The garbage is dumped anyhow and contains wastes such as food waste, plastics, industrial wastes, e-waste, and general household wastes.
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