Science, asked by kunalsinha1279, 1 year ago

Biological oxygen demand indicates
(1) High level of microbial pollution
(2) Low level of microbial pollution
(3) Absence of any pollution
(4) Water is highly pure

Answers

Answered by ManshiYo
0
1) High level of microbial pollution.
Answered by Aneesh77
0
HIGH LEVEL OF MICROBIAL POLLUTION


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