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Social & Preventive Medicine General f48f3335

What is the ideal hardness of drinking water in mEg/Litre?

A
>3
B
<1
C
3-Jan
D
>6
High-Yield Explanation
Drinking water should be moderately hard. Softening of water is recommended when the hardness exceeds 3 mEq/L (300 mg per litre).

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