Question
Biology Question on Environmental Issues
What is B.O.D.
A
The amount of O2 utilised by organisms in water
B
The amount of O2 utilized by micro organisms for decomposition
C
The total amount of O2 present in water
D
All of the above
Answer
The amount of O2 utilized by micro organisms for decomposition
Explanation
Solution
B.O.D. stands for Biological Oxygen Demand, and it is a measure of the amount of oxygen that microorganisms in water consume while decomposing organic matter. B.O.D. is a key indicator of water quality and pollution levels in aquatic ecosystems. Therefore, the correct option is (B): The amount of O2 utilized by microorganisms for decomposition