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

an area of low concentration to an area of high concentration

an area of equilibrium to an area of high concentration

Prior knowledge can be gained from personal experience and a) forming well-developed hypotheses. b) listening to opinions of other people on a topic. c) researching previous experiments and results on a topic. eliminate d) no other methods. it can only be gained by personal experience.