Question

How can you prove that water is transported through the xylem

Answer 1

xylem contains xylem vessels and tracheids which is meant for conducting of water and minerals so we can prove that water is transported to xylem

Answer 2

Water from the roots is pulled up by this tension. At night, when stomata close and transpiration stops, the water is held in the stem and leaf by the cohesion of water molecules to each other as well as the adhesion of water to the cell walls of the xylem vessels and tracheids.
Hope it help u