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प्रश्न
A high Biological oxygen demand (BOD) indicates that ______.
पर्याय
Water is pure
Absence of microbial action
Low level of microbial pollution
High level of microbial Pollution
MCQ
रिकाम्या जागा भरा
उत्तर
A high Biological oxygen demand (BOD) indicates that high level of microbial Pollution.
Explanation:
A high BOD shows the presence of a significant number of microorganisms, implying that the pollution level is considerable.
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