water table fluctuations

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• Water table — The water table is the level at which the ground water pressure is equal to atmospheric pressure. It may be conveniently visualized as the surface of the ground water in a given vicinity. It usually coincides with the phreatic surface , but can… …   Wikipedia

• Water well — Village pump redirects here. For information on Wikipedia project related discussions see Wikipedia:Village pump. Water well at the Wald monastery in Germany. A water well is an excavation or structure created in the ground by digging, driving,… …   Wikipedia

• Water (molecule) — Chembox new Name = Water (H2O) ImageFileL1 = Water 2D labelled.png ImageSizeL1 = 120px ImageNameL1 = The water molecule has this basic geometric structure ImageFileR1 = Water molecule 3D.svg ImageSizeR1 = 100px ImageNameR1 = Space filling model… …   Wikipedia

• Water — This article is about general aspects of water. For a detailed discussion of its properties, see Properties of water. For other uses, see Water (disambiguation) …   Wikipedia

• Properties of water — H2O and HOH redirect here. For other uses, see H2O (disambiguation) and HOH (disambiguation). This article is about the physical and chemical properties of pure water. For general discussion and its distribution and importance in life, see Water …   Wikipedia

• Self-ionization of water — The self ionization of water (also autoionization of water, and autodissociation of water) is the chemical reaction in which two water molecules react to produce a hydronium (H3O+) and a hydroxide ion (OH−):: 2 H2O (l) ightleftharpoons H3O+ (aq)… …   Wikipedia

• duricrust — /door i krust , dyoor /, n. a hard crust that forms on or in soil in semiarid climates owing to cementation of soil particles. Cf. caliche, hardpan (defs. 1, 2). [ < L dur(us) hard + I + CRUST] * * * ▪ geology Introduction       surface or near… …   Universalium

• Haor — A haor ( bn. হাওর) is a wetland ecosystem in the north eastern part of Bangladesh which physically is a bowl or saucer shaped shallow depression, also known as a backswamp.MK Alam; Wave attack in Haor areas of Bangladesh and cement concrete… …   Wikipedia

• china — /chuy neuh/, n. 1. a translucent ceramic material, biscuit fired at a high temperature, its glaze fired at a low temperature. 2. any porcelain ware. 3. plates, cups, saucers, etc., collectively. 4. figurines made of porcelain or ceramic material …   Universalium

• China — /chuy neuh/, n. 1. People s Republic of, a country in E Asia. 1,221,591,778; 3,691,502 sq. mi. (9,560,990 sq. km). Cap.: Beijing. 2. Republic of. Also called Nationalist China. a republic consisting mainly of the island of Taiwan off the SE coast …   Universalium

• hydrosphere — /huy dreuh sfear /, n. the water on or surrounding the surface of the globe, including the water of the oceans and the water in the atmosphere. [1885 90; HYDRO 1 + SPHERE] * * * Discontinuous layer of water at or near the Earth s surface. It… …   Universalium