groundwater surface
121Outline of hydrology — The following outline is provided as an overview of and topical guide to hydrology: Hydrology – study of the movement, distribution, and quality of water on Earth and other planets, including the hydrologic cycle, water resources and… …
122Datation des eaux souterraines — Au sein des aquifères, l’âge des eaux souterraines, c est à dire de son temps de transfert de son point d’infiltration vers son exutoire naturel ou non (captage) peut varier du jour au(x) million(s) d’années suivant le contexte géologique et… …
123Eutrophication — The eutrophication of the Potomac River is evident from its bright green water, caused by a dense bloom of cyanobacteria. Eutrophication (Greek: eutrophia healthy, adequate nutrition, development; German: Eutrophie) or more precisely… …
124Cave — For other uses, see Cave (disambiguation). Cavern redirects here. For other uses, see Cavern (disambiguation). Lechuguilla Cave, New Mexico A cave or cavern is a natural underground space large enough for a human to enter. The term applies to… …
125Geology of Mars — Mars   Mars as seen by the Hubble Space Telescope Designations …
126hydrologic cycle — the natural sequence through which water passes into the atmosphere as water vapor, precipitates to earth in liquid or solid form, and ultimately returns to the atmosphere through evaporation. [1955 60; HYDROLOG(Y) + IC] * * * Cycle that involves …
127Mines and Geosciences Bureau Region 13 (Philippines) — DENR Mines and Geosciences Bureau Region 13 Kawanihan ng Pagmimina at Agham Panlupa Bureau/Regional overview Headquarters DENR MGB Compound, Km. 2 National Highway, Surgao City Annual budget Personal Services P25.14 million (2011) Bureau/Regional …
128Outhouse — This article is about a type of building or structure used primarily as a toilet . For other uses, see Outhouse (disambiguation). An outhouse at Goat Peak, 6,305 ft (1,922 m) above sea level An outhouse is a small structure separate from a main… …
