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Question
A mixture (x) in water contains suspended solids, organic impurities, inorganic impurities (a), nutrients (b), disease-causing bacteria and other microbes. Give names for (x), (a) and (b)?
Solution
(x) – sewage
(a) – nitrates, phosphates and metals
(b) – phosphorus and nitrogen
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| Column I | Column II | ||
| (a) | Inorganic impurities | (i) | phosphorus and nitrogen |
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