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A sample of waste water has a high BOD. What does this indicate?
AIt is clean enough to be drunk safely
BIt has more organic matter and pollutes more
CIt contains no living microbes at all
DIt is mostly made of dissolved salts
Answer & Solution
Correct answer: B. It has more organic matter and pollutes more
BOD indirectly measures organic matter, so a greater BOD means greater polluting potential.
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