Question

_______ is the movement of a substance from areas of higher to lower concentration.

Answer 1

Diffusion is the movement of molecules from an area of high concentration to an area of low concentration.

Step-by-step explanation:

Diffusion is the movement of molecules from an area of high concentration to an area of low concentration. This process occurs due to the random motion of molecules and is driven by the concentration gradient, which is the difference in concentration between the two areas.