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.
Thatâs it? I wonât be tearing up my signed Trudeau rookie card on that basis. âPierre Trudeau was a spending fool,â Frum says, noting that he tripled spending through the 1970s. Like bell bottoms, though, it was the style at the time. U.S. federal spending rose from $195.6 billion in 1970 to $590.9 billion in 1980.