Catégories
> HYDROSPHERE (eau douce, eau de mer, eaux) > hydrosphère > eaux (géographie) > eau de surface > eau douce Water having a relatively low mineral content, generally less than 500 mg/l of dissolved solids.
 Moving waters like rivers and streams. eau courante |
| Water which flows in a channel from high ground to low ground and ultimately to a lake or the sea, except in a desert area where it may dwindle away to nothing. eau fluviale |
| Water which falls as rain from clouds. eau pluviale |
 The dense substance formed by the freezing of water to the solid state; it commonly occurs in the form of hexagonal crystals. glace |
| Water that occupies pores, cavities, cracks and other spaces in the crustal rocks. It includes water precipitated from the atmosphere which has percolated through the soil, water that has risen from deep magmatic sources liberated during igneous activity and fossil water retained in sedimentary rocks since their formation. The presence of groundwater is necessary for virtually all weathering processes to operate. Phreatic water is synonymous with groundwater and is the most important source of any water supply. nappe phréatique |
eau douce
Water having a relatively low mineral content, generally less than 500 mg/l of dissolved solids.
Voir aussi
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eau minérale
Water containing naturally or artificially supplied minerals or gases.
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eau potable
Water that is agreeable to drink, does not present health hazards and whose quality is normally regulated by legislation.
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