What purpose would the water serve

an important component in our survival, a way to grow crops, and a way to entertain others

Explanation:

Explanation:

How to Stay Hydrated

Because water is vitally necessary for your body to function properly, it's important to stay well-hydrated. The average person should drink around eight 8-ounce glasses of water per day, although this can vary.

Transportation

Water is essential in the body's transportation system. Nutrients and other necessary elements must be sent to all parts of the body in order to ensure functioning of every single body process, from respiration to muscle movement to digestion and waste removal

Important for Chemical Reaction

Protein and carbohydrates are two nutrients necessary for healthy body functioning. They provide energy and are vital for growth and development

Body Temperature Regulation

Water is an important agent in body temperature regulation. The human body cannot function unless this is maintained within a certain range.

Lubricant

A primary function of water is to serve as a lubricant. For example, it is found in saliva and is a substantial component in the fluid surrounding joints.

whichever one it is, it's definitely not one that you included on the list you provided.