A wetland ecosystem has a very high Biological Oxygen Demand (BOD). Which of the following statement about such a wetland is correct ?

A It has high level of microbial pollution.

B It has very low level of microbial pollution.

C There is no microbial pollution.

D It is highly turbid

Answer & Explanation
Answer:It has high level of microbial pollution.

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Environmental Studies Short Question | Gkseries