Question

Sewage from the nearby town was dumped into the sea. Which among the given conditionswould happen in the above ecosystem after mixing of sewage into the water?

Answer 1

Answer:

A large quantity of urban sewage is drained into nearby village river. Which among the given conditions would happen after mixing of sewage into the river?

(i) Biochemical oxygen demand (BOD) of receiving water body increases.

(ii) Dissolved oxygen of receiving water body decreases.

(iii) It will not cause mortality among fishes and other aquatic creatures.

(iv) It will lead to the nutrient enrichment of receiving water body.

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