Question

Which information makes this article reliable? Fluoride has been added to drinking water since the 1960s. Some people doubt the necessity of fluoridation. More than 50 studies were conducted. Fluoride has been found to prevent cavities in teeth.

Answer 1

The Correct answer should be a

Step-by-step explanation:

Answer 2

Answer:Fluoride has been added to drinking water since the 1960s

Explanation:just took quiz