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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)

best_answer

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)

Posted by

sudhir.kumar

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