| − | A '''lake''' is a body of [[water]] surrounded entirely by [[land]]. The [[Caspian Sea]], a saltwater lake, is the largest lake in the world, though the [[Mediterranean Sea]] is larger. [[Lake Superior]], one of the Great Lakes, is the largest freshwater lake by area. Lake Baikal in [[Siberia]] is the world's deepest lake, and the largest freshwater lake by volume.
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