Ques. What is B.O.D.?
A. The amount of O2 utilised by organisms in water.
B. The amount of O2 utilised by microorganisms for decomposition.
C. The total amount of O2 present in water.
D. All of the above
Answer:B
Ques. What is B.O.D.?
A. The amount of O2 utilised by organisms in water. B. The amount of O2 utilised by microorganisms for decomposition. C. The total amount of O2 present in water. D. All of the above