Question

After trees pull water in through their roots, the water must move up to their leaves for photosynthesis to occur. Since the water molecules cling to each other and to the inner surface of the plant's vascular tissues, the water pulls itself up through the tree by capillary action. Which property of water molecules allows them to cling together?

Answer 1

Water has an amazing ability to adhere (stick) to itself and to other substances. The property of cohesion describes the ability of water molecules to be attracted to other water molecules, which allows water to be a "sticky" liquid