Question

Write a letter to the head teacher about one sports materials

Answer 1

Explanation:

Diffusion is net movement of anything (e.g., atom, ions, molecules) from a region of higher concentration to a region of lower concentration. Diffusion is driven by a gradient in concentration. The concept of diffusion is widely used in many fields, including physics (particle diffusion), chemistry, biology, sociology, economics, and finance (diffusion of people, ideas and of price values). The central idea of diffusion, however, is common to all of these: an object (e.g. atom, idea, etc.) that undergoes diffusion spreads out from a point or location at which there is a higher concentration of that object.