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¦
A birthday is an occasion when a person or institution celebrates the anniversary of their birth. Birthdays are celebrated in numerous cultures, often with a gift, party, or rite of passage. Many religions celebrate the birth of their founders with special holidays (e.g. Christmas, Buddha's Birthday).