Question
Sewage water from residential areas and used water from industries must be disposed of directly into the rivers and lakes.
Answer: Option B
:
B
Sewage water and industrial waste water contain a lot of chemicals, unused materials, and harmful microorganisms, and should not be directly disposed of into the rivers and lakes because they cause water pollution and contamination which is a threat to aquatic life. They should be first treated before dumping into these places.
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:
B
Sewage water and industrial waste water contain a lot of chemicals, unused materials, and harmful microorganisms, and should not be directly disposed of into the rivers and lakes because they cause water pollution and contamination which is a threat to aquatic life. They should be first treated before dumping into these places.
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