Question

Mixing of sewage with drinking water source causes O reduction in dissolved oxygen death of aquatic animals contamination of water source all of the above​

Answer 1

Answer:

All of the above

These all are the outcomes of combination of water bodies by sewage. Reduction in dissolved oxygen occurs due to increse in microbial activity in water body causing death of fishes due to lack of oxygen. These microorganisms can be virulent also, which makes the water contaminated.

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Answer 2

Answer:

It can do a major damage including, reduction in oxygen, death of organisms and contamination.

Sewage pollution in water is a major problem in our country, despite the measures taken, it is rapidly increasing.

Explanation:

• When the sewage gets mixed with drinking water and comes into contact with the skin of animals and even humans, it can cause an infection of severe degree.
• Furthermore, the organisms living in water dies, as the bacteria in the contaminated water is so dangerous that they can't fight them.
• The contaminated water is the main cause of diseases like cholera and hepatitis.
• The oxygen content of water gets decreased when the organic material from sewage gets mixed with drinking water.

Hence, mixing of sewage with drinking water source causes reduction in dissolved oxygen, death of aquatic animals and contamination of water source.