1. Civil Engineering
  2. Environmental Engineering
  3. The flouride content in the drinking wat...
Q.

The flouride content in the drinking water should not exceed

A. 200 mg/litre
B. 150 mg/litre
C. 100 mg/litre50 mg/litre
D. 1 mg/litre
E. 50 mg/litre
Answer» D. 1 mg/litre
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