Seawater accounts for 97
percent of earth's water. Of the remaining 3 percent,
two-thirds is frozen solid in icecaps and glaciers. The
remaining 1 percent of the world's water is found in clouds,
precipitation, rivers, lakes and ground water.
Lake Baikal, in Siberia, is the largest and deepest lake in
the world, containing 20 percent of the world's freshwater.