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BOD and COD

Untreated dom...

Question

Untreated domestic sewage has a low:

A

BOD value

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B

% of dissolved O

_{2}

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C

amount of dissolved salts

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D

value of suspended organic matter

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Solution

The correct option is A % of dissolved O $_{2}$
Untreated sewage is the feces and urine of humans that has not been treated to kill disease-causing organisms. It has a low percentage of dissolved $O_{2}$ due to polluted water.

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