which chemical is added to many municipal water supplies to help prevent tooth decay?
A.) chlorine
B.) bromine
C.) ozone
D.) fluoride
Answers
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4
D its definitely D because chlorine is used in pool water to kill bacteria and ozone has something to do with the earth
monubarawal2002:
hey
hi
Answered by
2
Fluiride is added to many municipal water suplies to help in prevention of tooth decay
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