My America. Great lakes – the largest lake of the world all together contain less water than the lake – VOICES MY AMERICA
Great lakes (Fig. Great Lakes, FR. Grands Lacs) — a Grand natural system of freshwater lakes in North America, in the U.S. and Canada. Includes a number of large and medium-sized reservoirs, connected by rivers and Straits. An area of about 245,2 thousand km², the volume of water is 22.7 thousand km³.
To actually five Great lakes include the largest: Upper, Huron, Michigan, Erie and Ontario. They are associated with several medium-sized lakes, the most important of which are the St. Marys, St. Clair, Nipigon. These lakes belong to the basin of the Atlantic ocean. Stoke on the St. Lawrence river. On the formation of lake basins are significantly influenced by tectonic processes. The weight of the glacier pushed the earth’s crust, and after the glacier melted away, she slowly began the process in reverse: post-glacial uplift, which is also very noticeable in the area of the Gulf of Bothnia and Finland. The water mass of lakes formed by the melting of the glacier. North coast Great lakes South rises faster, which leads to the effect of “transfusion” water and slow the flooding of land in the South.
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