Question

what is diffusion
in long explanation​

Answer 1

Explanation:

Diffusion is the movement of a substance from an area of high concentration to an area of low concentration. Diffusion happens in liquids and gases because their particles move randomly from place to place. Diffusion is an important process for living things; it is how substances move in and out of cells.

Answer 2

Answer:

intermixing of two substance completely

is called diffusion