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- Water sample is called cleanest on the basis of which one of the BOD values given below :Option: 1 11 ppmOption: 2 15 ppmOption: 3 3 ppmOption: 4 21 ppm
Water sample is called cleanest on the basis of which one of the BOD values given below :
Option: 1 11 ppm
Option: 2 15 ppm
Option: 3 3 ppm
Option: 4 21 ppm
Answers (1)
As we have learnt,
Lesser the BOD value, lesser is the pollution and cleaner is the water sample.
Therefore, the water sample having 3 ppm BOD value is the cleanest among the given ones.
Hence, the correct answer is Option (3)
View full answer
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