Question

What happens when the maximum amount of oxygen in the upstream of sewage discharge is utilized by microbes?

• A. Natality of aquatic plants
• B. Natality of aquatic fishes
• C. Mortality of aquatic creatures
• D. Mortality of bacteria

Answer 1

Answer:

C. Mortality of aquatic creatures

• When the maximum amount of oxygen in the upstream of sewage discharge is utilized by microbes, there is less oxygen availability in the downstream that is rivers, ponds, or the other water bodies.

• Due to this, the aquatic organisms living in that respective ecosystem die due to a deficiency of oxygen.