Question 1684 Deck Safety

The correct answer is C) Chlorine. Chlorine is the chemical most commonly used to treat water to ensure its safety for drinking. Chlorine is an effective disinfectant that kills harmful bacteria and microorganisms in the water, making it safe for human consumption. This is a standard practice for water treatment in the United States and is required by regulations to ensure the quality and safety of public drinking water supplies. The other answer choices (Nitrogen, Oxygen, and Carbon) are incorrect because they are not typically used as the primary disinfectant in water treatment processes. Nitrogen and carbon are not effective disinfectants, while oxygen is already present in water and does not provide the necessary disinfection properties.