Microbes In Human Welfare Question 18

Question: A lake with an inflow of domestic sewage rich in organic waste may result in:

Options:

A) drying of the lake very soon due to algal bloom.

B) an increased production of fish due to lot of nutrients.

C) death of fish due to lack of oxygen.

D) increased population of aquatic food web organisation.

Show Answer

Answer:

Correct Answer: C

Solution:

[c] A river with sewage, increases the organic waste and decreases the dissolved oxygen.