(c) Imbibition
Explanation:
Imbibition is the process of adsorption of water by hydrophilic surfaces of a substance without forming a solution. It is a type of diffusion by which movement of water takes place along a diffusion gradient. The solid particles which adsorb water or any other liquid are called Imbibibants. The liquid which is imbibed is known as Imbibate. Examples are absorption of water by seeds and dry wood.
