A sedentary person requires how many liters of water per day?

• A. 2 liters
• B. 3 liters
• C. 4 liters
• D. 5 liters

Answer: (B)

Daily water needs for a sedentary adult are typically around three liters. This amount helps replace the regular losses from breathing, skin, urine, and other bodily processes, and it aligns with common hydration guidelines for a baseline level of activity. You can reach this target with a combination of beverages and water content found in foods. If the environment is hot, humid, or you’re more active, you’ll need more fluid to stay properly hydrated. Two liters can be too low for many people, while four or five liters is generally more than needed for someone not engaging in significant activity. In live-fire training and similar contexts, maintaining adequate hydration is essential, so aiming for about three liters serves as a practical baseline with adjustments for heat and exertion.