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Who utilizes the maximum amount of oxygen in the upstream of sewage discharge?

AAnimals

BMicroorganisms

CHumans

DPlants

Answer:

B. Microorganisms

Read Explanation:

  • In the upstream of sewage water, the maximum oxygen is used by the microorganisms.

  • Due to this, there is less oxygen availability in the downstream that is rivers, ponds, or the other water bodies where the fully processed wastewater is released.


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