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.
1990 Score Supplemental Emmitt Smith rookie card. This is Emmitt Smithâs best rookie card. You can find these football cards on Ebay in Gem MT 10 condition for about $300-$350. These cards are condition sensitive due to the colored border. A great card and a great investment.
Emmitt Smith said he had a tremendous ride in the NFL. He spent 13 seasons with the Dallas Cowboys. Smith was more consistent than he was spectacular, a running back who could be relied on to get tough yards when tough yards were needed. He rushed for 1,000 yards or more every year between 1991 and 2001.