In simple terms, it is the steady movement of particles from regions where there are many of them to regions where there are a few of them. It is a natural trend for things to spread out down a Concentration Gradient. See diagram below.In scientific terms, DIFFUSION is the MOVEMENT OF PARTICLES from a region of HIGH CONCENTRATION to a region of LOW CONCENTRATION. Diffusion is a passive process, it does not require any energy for it to happen.t is a natural trend for things to spread out down a Concentration Gradient. See diagram below. In scientific terms, DIFFUSION is the MOVEMENT OF PARTICLES from a region of HIGH CONCENTRATION to a region of LOW CONCENTRATION.
Define anniversary: the annual recurrence of a date marking a notable event; broadly : a date that follows such an event â¦ â anniversary in a sentence the annual recurrence of a date marking a notable event; broadly : a date that follows such an event by a specified period of time measured inâ¦
jubilee - a special anniversary (or the celebration of it) wedding anniversary - the anniversary of the day on which you were married (or the celebration of it) semicentenary, semicentennial - the 50th anniversary (or the celebration of it) centenary, centennial - the 100th anniversary (or the celebration of it)