What is the maximum allowable concentration of fluorides in drinking w – McqOptions

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1.	What is the maximum allowable concentration of fluorides in drinking water ?
A.	1.0 milligram per liter
B.	1.25 milligram per liter
C.	1.50 milligram per liter
D.	1.75 milligram per liter
Answer» D. 1.75 milligram per liter

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