The phenomenon involved in swelling of a piece of wood when placed in water is
The correct option is
B
Imbibition
Imbibition is a special type of diffusion where water is absorbed by solids causing them to enormously increase in volume. The classical examples of imbibition are absorption of water by seeds and dry wood.
Osmosis is a process by which the molecules of a solvent pass from a solution of low concentration to a solution of high concentration through a semi-permeable membrane.
Absorption is the process of absorbing substances into cells or across the tissues and organs through diffusion or osmosis, as in the absorption of nutrients by the digestive system, or absorption of drugs into the bloodstream.
Plasmolysis is a contraction of the protoplast of a plant cell as a result of the loss of water from the cell.