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2,000,000 mi 3 (8,400,000 km 3
- More than 2,000,000 mi 3 (8,400,000 km 3) of freshwater is stored in the Earth, most within one-half mile of the surface. But, if you really want to find freshwater, most is stored in the 7,000,000 mi 3 (29,200,000 km 3) of water found in glaciers and icecaps, mainly in the polar regions and in Greenland.
www.usgs.gov/special-topics/water-science-school/science/how-much-water-there-earth
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How much of Earth's Water is fresh water?
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The total volume of water on Earth is estimated at 1.386 billion km 3 (333 million cubic miles), with 97.5% being salt water and 2.5% being freshwater. Of the freshwater, only 0.3% is in liquid form on the surface.
Nov 13, 2019 · Of total freshwater, over 68 percent is locked up in ice and glaciers. Another 30 percent of freshwater is in the ground. Rivers are the source of most of the fresh surface water people use, but they only constitute about 509 mi 3 (2,120 km 3), about 1/10,000 th of one percent of total water.
- Oceans (97.2%) Most of Earth is saltwater in oceans. About 97.2% of Earth’s surface water resides in oceans. There are 5 oceans that surround continents.
- Glaciers (2.1%) About 2.1% of Earth’s water is in glaciers. Glaciers are the second largest reservoir of water with most of them in Greenland and Antarctica.
- Groundwater (0.65%) As a hidden source of water, we find groundwater everywhere. About 0.65% of the water on Earth is in groundwater stored in an aquifer.
- Freshwater and Saline Lakes (0.017%) Only 0.009% of water is stored in lakes. For example, the Great Lakes are sources of freshwater which consist of about 21% of freshwater lakes on Earth.
Fresh water or freshwater is any naturally occurring liquid or frozen water containing low concentrations of dissolved salts and other total dissolved solids. Although the term specifically excludes seawater and brackish water, it does include non-salty mineral-rich waters such as chalybeate springs.
Nov 4, 2020 · Sources of Fresh Water. Groundwater - water which infiltrates into the ground through porous materials deeper into the earth. It fills pores and fractures in layers of underground rock called aquifers. Some of this water lies too far under the earth's surface to be extracted at an affordable cost.
Jun 8, 2018 · Freshwater represents only about three percent of all water on Earth and freshwater lakes and swamps account for a mere 0.29 percent of the Earth's freshwater. Twenty percent of all fresh surface water is in one lake, Lake Baikal in Asia.
Jan 26, 2024 · It is unexpected and somewhat inconceivable that less than three percent of Earth's water is fresh water. According to the U.S. Geological Survey, most of that three percent is inaccessible. More than 68 percent of the fresh water on Earth is found in icecaps and glaciers, and just over 30 percent is found in ground water.
