Why is Antarctica called a source of fresh water? How can you get Antarctic fresh water?

Why is Antarctica called a source of fresh water? How can you get Antarctic fresh water? The main feature of the geographical position of Antarktita is.

Antarctica, the mainland is completely covered with ice. It is called a large supply of Perseus water since all the ice that is there is fresh water! The ice of Antarctica is slowly beginning to melt, the actual water can be obtained by heating. The main feature of Antarctica is that it does not have its own time zone; each country that comes there with an expedition lives there in its own time.