Describe briefly the three physical properties of water which helps in the ascent of water in the xylem.
Describe briefly the three physical properties of water which helps in the ascent of water in the xylem.

Solution:

i) The attraction between water molecules and other molecules is known as adhesion.

ii) Cohesion is the force that keeps water molecules connected together through hydrogen bonding between them.

iii) Surface tension is the ability of a liquid’s surface to resist an external force due to the cohesive nature of the liquid’s molecules. Adhesion and cohesion are the causes of capillary action.