AIPMT PRELIMS2001Botany-Environmental Chemistry
AIPMT PRELIMS 2001 Botany Water Pollution MCQ Question
Type: MCQ-conceptual-Medium-Class 12
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
Correct Answer
Option B
Detailed Explanation
B.O.D. measures the amount of oxygen required by microorganisms to decompose organic matter in water.
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