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Show DID YOU KNOW That while the United States has only six per cent of the population of the world, and only seven per cent of the land, it produces: 60 Percent of the world's supply of copper 4 0 Per cent of the world's supply of lead. 50 Per cent of the world's supply of zinc. 00 Per cent of the world's supply of a luminum. 66 Per cent of the world's supply of oil. 75 Per cent of the world's supply of corn. 60 Per cent of the world's supply of cotton. 40 Per cent of the world's supply of silver. 52 Per cent of the world's supply of coal. 4 0 Per cent of the world's supply of steel and iron. 2 0 Per cent of the world's suppl ' gold. 85 Per cent of the world's supply sup-ply of automobiles. .25 Per cent of the world's supply of wheat. And refines 80 per cent of the Copper, Cop-per, and operates 40 per cent of the world's railroads. |