the movement of molecules of a particular substance from regions of high concentration to regions of low concentration of that substance, i.e. down a CONCENTRATION GRADIENT. The rate of diffusion in gases is much greater than in liquids, due to differences in their molecular structure.
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Will Smith net worth is $220 million. Will Smith is scheduled to earn $60 million from I Robot 2, bad boys 3, Hancock 2. Will Smith net worth will be $300 by 2015.. Willard Christopher Will Smith, Jr. (born September 25, 1968), also known by his stage name The Fresh Prince, is ...