What happens when water is deoxygenated due to algal growth?

Category: QuestionsWhat happens when water is deoxygenated due to algal growth?
Editor">Editor Staff asked 4 weeks ago

What happens when water is deoxygenated due to algal growth?
 
(a) Increase in the number of fishes
 
(b) Increase in the number of aquatic plants
 
(c) Eutrophication
 
(d) Death of aquatic animals
 
This question was addressed to me during a job interview.
 
My enquiry is from Environmental Issues in division Environmental Issues of Biology – Class 12

1 Answers
Editor">Editor Staff answered 4 weeks ago

The correct option is (d) Death of aquatic animals
 
The explanation is: The excessive richness of nutrients in a water body leads to an acceleration in the growth of algae and the natural aging of the lake. This excess growth deoxygenates water leading to the death of aquatic life.