![Who utilizes the maximum amount of oxygen in the upstream of sewage discharge?](https://www.gkseries.com/blog/wp-content/uploads/2022/09/Who-utilizes-the-maximum-amount-of-oxygen-in-the-upstream-of-sewage-discharge.png)
Q. Who utilizes the maximum amount of oxygen in the upstream of sewage discharge?
- Animals
- Microorganisms
- Humans
- Plants
Answer: Microorganisms
Answer: Microorganisms
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