Water sample is called cleanest on the basis of which one of the BOD values given below:
Water sample is called cleanest on the basis of which one of the BOD values given below:
Option 1 -
3 ppm
Option 2 -
11 ppm
Option 3 -
15 ppm
Option 4 -
21 ppm
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1 Answer
-
Correct Option - 1
Detailed Solution:BOD is biological oxygen demand which represents the amount of oxygen required to degrade organic matter in water.
Higher the BOD more polluted the water is
So; here water sample with BOD = 3 ppm is the cleanest
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