Environmental Issue And Environmental Pollution Question 3
Frequent occurrence of water blooms in a lake indicates:
Options:
A) Nutrient deficiency.
B) Oxygen deficiency.
C) Excessive nutrient availability.
D) Absence of herbivores in the lake.
Show Answer
Answer:
Correct Answer: B
Solution:
[b] In polluted water nitrogen and phosphorus (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 death and decomposition of organic matter, $ O_2 $ is consumed by aquatic animals.
BETA
