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what is the meaning of freshwater and related issues

Barely 2.8% of all water on Earth is freshwater . Most of it is found in glaciers and pack ice (77%) and in groundwater (22%).the rest, only 1%, forms the watercourses that irrigate valleys and plains. Fresh water or freshwater is any naturally occurring liquid/solid water containing low concentrations of dissolved salts and other total dissolved solids. As it flows down from mountaintops to the ocean, freshwater feeds glaciers, lakes , and rivers . the water evaporates and forms clouds, precipitation from which feeds watercourses. For millions of years, this vast water cycle has created landscapes by carving out valleys, eroding mountains, and changing shorelines . It plays an essential role in the redistribution of water around the planet.

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