Which of these substances is commonly added to public water supplies to disinfect the water?

Question

Quizplus · Accepted Answer

Chlorine is commonly added to public water supplies as a disinfectant to kill harmful bacteria, viruses, and parasites. Ozone and fluoride are also sometimes added to water supplies, but primarily for different purposes (ozone for purification, fluoride for dental health). Penicillin is an antibiotic and would not be effective in disinfecting water.

Which of These Substances Is Commonly Added to Public Water