What is a primary use of water in the domestic category?

The primary use of water in the domestic category focuses on activities that are directly related to household needs. Cooking and bathing are fundamental domestic activities wherein water is essential. These uses highlight the importance of water for personal hygiene and food preparation, which are critical daily functions in any household.

In contrast, watering lawns pertains more to outdoor maintenance rather than essential domestic functions. Although it's a water use, it's not classified as a primary domestic use when compared to activities that directly impact personal health and nutrition. Similarly, irrigation for crops is primarily an agricultural practice and plays a different role in water usage than what is typically categorized as domestic. Therefore, cooking and bathing represent the quintessential domestic uses of water, aligning with the definition of this category.