physico-chemical environment

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• Lancaster Environment Centre — infobox University name= Lancaster University Environment Centre established=2003 city= Lancaster country= United Kingdom type=Science Centre website=http://www.lec.lancs.ac.uk/ dean=Professor Mary Smyth campus=Semi Rural address= Lancaster… …   Wikipedia

• Nitroso — Wire frame model of nitroso moiety Nitroso refers to a functional group in organic chemistry which has the general formula RNO. Nitroso compounds are a class of organic compounds containing the nitroso functional group, R−N=O. Nitrosyls are… …   Wikipedia

• Abiogenesis — Primordial soup redirects here. For the board game, see Primordial Soup (board game). Origin of life redirects here. For views on the origins of life outside the natural sciences, see Creation myth. Pre Cambrian stromatolites in the Siyeh… …   Wikipedia

• Life — • The enigma of life is still one of the two or three most difficult problems that face both scientist and philosopher Catholic Encyclopedia. Kevin Knight. 2006. Life     Life      …   Catholic encyclopedia

• Natural organic matter — (NOM) is broken down organic matter that comes from plants and animals in the environment. [ Natural Organic Matter, GreenFacts, 22 Apr, 2007 …   Wikipedia

• Polychlorinated dibenzodioxins — See also: 2,3,7,8 Tetrachlorodibenzodioxin, Dioxins and dioxin like compounds, and 1,4 Dioxin General structure of PCDDs where n and m can range from 0 to 4 Polychlorinated dibenzodioxins (PCDDs), or simply dioxins, are a group of organic… …   Wikipedia

• Organic matter — Other meanings can be found at Biological material Organic matter (or organic material, Natural Organic Matter, or NOM) is matter that has come from a once living organism; is capable of decay, or the product of decay; or is composed of organic… …   Wikipedia

• Chemotaxis — is the phenomenon in which somatic cells, bacteria, and other single cell or multicellular organisms direct their movements according to certain chemicals in their environment. This is important for bacteria to find food (for example, glucose) by …   Wikipedia

• Sediment Profile Imagery — (SPI) is an underwater technique for photographing the interface between the seabed and the overlying water. The technique is used to measure or estimate biological, chemical, and physical processes occurring in the first few centimetres of… …   Wikipedia

• Ore genesis — The various theories of ore genesis explain how the various types of mineral deposits form within the Earth s crust. Ore genesis theories are very dependent on the mineral or commodity. Ore genesis theories generally involve three components:… …   Wikipedia

• Biological constraints — are factors which make populations resistant to evolutionary change. Constraint has played an important role in the development of such ideas as homology and body plans. Types of constraintConstraint, broadly considered, is so general as to be an …   Wikipedia