Multiple choice

This is added to drinking water and prevents tooth decay

  1. Copper

  2. Iodine

  3. Flouride

  4. Calcium

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Fluoride is commonly added to public drinking water supplies to help prevent dental cavities (tooth decay) by strengthening tooth enamel. While calcium is also important for teeth, it is not typically added to municipal drinking water for this purpose. Note that "fluoride" is misspelled as "Flouride" in the options.