How much water is needed per person on a daily basis?

The correct answer highlights that an individual typically requires around 60 US gallons, which is approximately 230 liters, of water on a daily basis. This estimate incorporates not only the water needed for drinking and cooking but also includes additional usage for personal hygiene, sanitation, and various household activities.

The amount of water used varies significantly depending on several factors such as lifestyle, climate, and local practices. For example, individuals in areas with higher temperatures may use more water for hydration and cooling purposes. Similarly, those who engage in more water-intensive activities, like gardening or washing vehicles, will also have higher daily water requirements.

Understanding this range is crucial for assessing water supply needs in residential planning and water conservation efforts. The other options provide either lower or higher figures than what is commonly recognized for daily individual consumption needs, which would not reflect the average person's requirements when all uses are considered.