Final answer:
Water is essential for various bodily functions and needs to be replenished daily. The amount of water needed may vary depending on individual factors.
Step-by-step explanation:
Water is essential for life. The human body needs water for digestion, carrying waste, making urine, circulating blood, regulating temperature, and for various chemical reactions in cells. Approximately 2 to 3 liters of water are lost from the body every day through perspiration, urine, stool, and breathing. It is important to replenish this lost water by drinking enough fluids throughout the day. While the daily recommendation is to drink eight to ten glasses of water, the actual amount needed may vary depending on individual factors such as activity level, climate, and overall health.