GENERAL GEOLOGY

Detailed explanation-1: -The Great Lakes are the largest freshwater system in the world. The five Great Lakes-Superior, Huron, Michigan, Erie and Ontario-span a total surface area of 94, 600 square miles and are all connected by a variety of lakes and rivers, making them the largest freshwater system in the world.

Detailed explanation-2: -The Great Lakes-Superior, Michigan, Huron, Erie and Ontario-and their connecting channels form the largest fresh surface water system on earth.

Detailed explanation-3: -With 23, 615.39 km3 (5, 670 cu mi) of water, Lake Baikal is the world’s largest freshwater lake by volume, containing 22–23% of the world’s fresh surface water, more than all of the North American Great Lakes combined.

Detailed explanation-4: -The Great Lakes system includes five large lakes, one small lake, four connecting channels, and the St. Lawrence Seaway. The large lakes are Superior, Michigan, Huron, Erie, and Ontario. They hold about 90% of the freshwater in the United States and approximately 20% of the world’s freshwater supply.