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 football cards, to include the Emmitt Smith rookie card is an excellent investment for any card collection. While the traditional cards can be purchased or $5 to $65 on average, the 1990 90 Score Emmitt Smith Rookie Card with a grade of 9 goes for around $275. Value of Emmitt Smith Rookie Cards.