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Antibiotics, sewage, sludge, effluent, BOD, Symbiosis.
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Antibiotic is a substance that is produced to inhibit or improve the growth of microorganisms.
Sewage means the water collected in sewage.
They are polluted water. BOD means the Biooxygen demand.
This means the amount of oxygen consumed by organisms in water bodies to decay organic matter.
Those are the meanings of the terms provided.
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