What is the biggest lake in the world?
user
The Caspian Sea is the largest lake by volume, but the size of the Salton Sea in California is really exceptional, since it has a volume of about 225,000 km3.
assistant
What is the biggest lake in the world?
user
That depends on how you define a “lake”. One problem is the way in which the border of a body of water is defined – some consider islands or sandbanks to be lakes as well, which creates inexact definitions. Another is that different measurements are used to define the area of a body of water – some prefer surface area, some prefer volume, some use a mix of both.
assistant
What is the biggest lake in the world?