Where is the worlds biggest fresh water lake?

1.Lake Superior is, by surface area, the world's largest freshwater lake. 
2. The surface area of Lake Superior (31,700 square miles or 82,170 square kilometers) is greater than the combined areas of Vermont, Massachusetts, Rhode Island, Connecticut, and New Hampshire.  
3.  Lake Superior contains as much water as all the other Great Lakes combined, even throwing in two extra Lake Eries.
4.  Lake Superior contains 10% of all the earth's fresh surface water.
5.  There is enough water in Lake Superior (3,000,000,000,000,000--or 3 quadrillion-- gallons) to flood all of North and South America to a depth of one foot.