Human Reproduction Question 275
Question: Frequent occurrence of water blooms in a lake indicates [AIEEE 2003]
Options:
A) Nutrient deficiency disorder
B) Oxygen deficiency
C) Excessive nutrient availability
D) Absence of herbivores in the lake
Show Answer
Answer:
Correct Answer: B
Solution:
In polluted water nitrogen and phosphorous (from sewage) are accumulated which results in excessive growth of algae on water surface.
Excessive growth of algae is called a water bloom.
Due to the death and decomposition of organic matter, which is not available to aquatic animals.
BETA
