Question

(11) (a) How are microbes used in sewage management?
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Answer 1

Answer:

Aerobic bacteria use oxygen, which is added mechanically, to break down wastewater contaminants, converting it into energy. Bacteria use this energy to grow and reproduce. Anaerobic bacteria obtain oxygen from their food source. As anaerobic bacteria break down sludge, they produce methane gas.

Explanation:

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Answer 2

Answer:

I love nature but can you tell me what is sewages