Question

milk and water are an important part of most healthy diets. unlike water, milk contains a lot of calcium and vitamin d. in contrast to drinking water, drinking milk
rids the body of waste.
helps cells function properly.
keeps the body from losing fluids.
provides the body with building blocks.

Explanation:

Water helps rid the body of waste, helps cells function properly, and keeps the body from losing fluids. Milk contains calcium and vitamin D which are building - blocks for bones and other body functions. So drinking milk provides the body with building blocks.

Answer:

provides the body with building blocks.