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\r\n\r\n\r\n \r\nWhat should be the hardness level of drinking water?\r\n\r\n

A

Soft water

B

Moderately hard water

C

Hard water

D

Very hard water

High-Yield Explanation

Drinking water should be moderately soft. Softening of water is recommended when hardness exceeds 3 meq/ L. Ref: Park 21st edition page: 672.

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