What is the reason for the reduction in dissolved oxygen?
ABio-magnification
BEutrophication
CExtinction
DPollution
Answer:
B. Eutrophication
Read Explanation:
The excessive richness of nutrients (phosphorus, nitrates, and detergents) in a lake or other body of water that leads to acceleration in the growth of algae and the natural aging of the lake is known as eutrophication.
Excess algal growth deoxygenates water and reduces the dissolved oxygen content.
