Question
CIVICS > ELECTION_COMMISSION
1) Biological Oxygen Demand (BOD) in a river water
A) remains unchanged when algal bloom occursB) has no relationship with concentration of oxygen in water
C) gives a measure of Salmonella in the waterD) increases when sewage gets mixed with river water
View Answer        RRB_JE_2014_Answer-key
Answer : has no relationship with concentration of oxygen in water




Avdhesh Says on 30/08/2015 07:12:41 pm :

D should have been the answer


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