Question: 1 . ) A water Sample fluoride with a frimary Standard of 4 . 9 and secondary of 1 . 9 is the Somple Safe

1.) A water Sample fluoride with a frimary Standard of 4.9 and
secondary of 1.9 is the Somple Safe for drinking, why?
1 . ) A water Sample fluoride with a frimary

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