A lake has been polluted by sewage. On comparison with the sample of unpolluted water, the water in the lake is found to have increased contents of some components.
Identify these components.
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Sewage usually contains organic substances. The decomposition of these substances by decomposers increases nitrogenous compounds in water.
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Answer:
Plastics, chemicals, trash, dangerous living organisms like bacteria and parasites, and dead bodies.
Explanation:
The use of plastics is very common. It is a subject to environmental hazards. Plastics are non-bio decomposable materials. They pile up in the water bodies and suffocate the living creatures living in them.
Chemical waste and trash are also dumped in the water bodies as there is no correct way found to discard them.
Animals and plants that die at the water bodies, become food for parasites, fungi, and bacteria.
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