the great lakes
Salt waters of the Atlantic
The largest hydrologic compartment containing fresh water is ice caps and glaciers, storing about 68.7% of the world's fresh water. This frozen water plays a crucial role in regulating global climate and sea levels.
The Antarctic ice sheet contains about 90% of earth's ice.
Most of the fresh water on Earth is stored in glaciers and ice caps, particularly in Antarctica and Greenland. Approximately 68.7% of the world's fresh water is locked away in these frozen reserves. The remaining fresh water is found in groundwater, surface water bodies like rivers and lakes, and in the atmosphere. This makes glaciers and ice caps the largest reservoir of fresh water, significantly influencing global water availability.
The world's largest group of freshwater lakes is the Great Lakes, located in North America. They consist of Lakes Superior, Michigan, Huron, Erie, and Ontario, and together make up one-fifth of the world's surface fresh water.
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the Great Lakes are fresh water.( the largest fresh water lakes in the world.)
The great lakes
Sandbanks Provincial Park, near belleville Ontario Canada
"The Antarctic Icecap is the largest supply of fresh water, representing nearly 2% of the world's total of fresh and salt water." Source: http://www.infoplease.com/ipa/A0004674.html
the great lakes
Lake Tanganyika
lake supior
Lake Superior is the world's largest fresh water lake
There are 25% of freshwater in the Great Lakes
If by water system you mean a river system, then the Amazon River system of South America is the largest.
The largest amount (by volume) of freshwater above ground is Lake Baikal in Russia. It contains about 20% of the surface freshwater. However, almost all of the world's freshwater is underground.