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Q. |
Nitrogen in water is commonly found in the form of - |
A. | Nitrous oxide |
B. | Nitrate |
C. | Nitric oxide |
D. | Nitrite |
Answer» B. Nitrate | |
Explanation: Nitrate (NO3) is the most common form of inorganic nitrogen in unpolluted waters. Nitrate moves readily through soils and into ground water, where concentrations can be much higher than insurface waters. Water in coastal areas mainly contains elementary nitrogen gas (N2). |
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