Biological treatment of water pollution is done with the help of
A
Bacteria
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B
Lichens
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C
Fungi
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D
Both A and C
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Solution
The correct option is B Both A and C Biological treatment of the waste water can be performed with the use of microbes. The bacteria and fungal cells are commonly used in the treatment of the water through activated sludge. Activated sludge refers to floc of microorganisms including bacterial cells and fungal filaments which are used in the process to break down organic matter into carbon dioxide, water, and other inorganic compounds and help in the clearing of the water.