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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.
The definition of freshwater is water containing less than 1,000 milligrams per liter of dissolved solids, most often salt. As a part of the water cycle, Earth's surface-water bodies are generally thought of as renewable resources, although they are very dependent on other parts of the water cycle.
Understanding freshwater is critical for life on Earth and is an integral part of the National Geographic Society’s mission. Our World Water Map – part of the newly launched World Freshwater Initiative (WFI) – accounts for every drop of water in the world – and where it’s going.
Freshwater. Protect the world’s freshwater resources and landscapes to support biodiversity and human livelihoods. Overview. All life needs water. It is the world’s most precious resource, fueling everything from the food you eat, to the cotton you wear, to the energy you depend upon every day.
The freshwater biome is home to likely millions of wonderful aquatic plants and animals, including everything from water lilies to manatees.
The meaning of FRESHWATER is consisting of or containing fresh water. How to use freshwater in a sentence.
Freshwater ecosystems including inland water bodies such as rivers, lakes, wetlands and groundwater aquifers, and their biodiversity, are among the most threatened on the planet. They are also closely connected to other ecosystems along our coasts and in the ocean.
Less than three percent of our planet’s water is fresh water, and less than half of that is available as a liquid; the rest is locked away as ice in polar caps and glaciers. For these reasons, freshwater ecosystems are a precious resource. Where is Fresh Water?
Yet, rivers and lakes are the sources of most of the water people use everyday. In the first bar, notice how only 2.5% of Earth's water is freshwater - the amount needed for life to survive. The middle bar shows the breakdown of freshwater. Almost all of it is locked up in ice and in the ground.
Rivers, creeks, lakes, ponds, and streams are all freshwater habitats. So are wetlands like swamps, which have woody plants and trees; and marshes, which have no trees but lots of grasses and...