The Accepted Optimal Level of Fluoride in the Drinking Water

question 6

Multiple Choice

The accepted optimal level of fluoride in the drinking water is in the range of ____ mg/L or parts per million.

• A) 0.01 to 0.07
• B) 0.07 to 0.12
• C) 0.12 to 0.7
• D) 0.7 to 1.2

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Definitions:

Sewer Drains

Infrastructure designed to carry away waste water and storm water from urban and suburban areas to treatment facilities or natural outlets.

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