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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