The movement of a substance from the area of low concentration to an area of high concentration is called diffusion.
Movement of molecules of a substance from the region of their higher concentration to the region of their lower concentration without the involvement of a separating membrane is called
(a) Osmosis (b) Diffusion
(c) Active transport (d) Capillarity
The process of movement of molecules from the area of lower concentration to the area of higher concentration is called: