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.
They buy him because you canât have a Hall of Fame rookie card set without him and his card is the key to the 1970 Topps football set. O.J. rookie cards are now 42 years old and they have sold for as much as $1,378 in PSA 9 over the last several years. An 8.5 sold for $650 and an 8 brought $264.