water sedimentation
51Appalachian elktoe — Taxobox name = Appalachian elktoe status = CR | status system = IUCN2.3 regnum = Animalia phylum = Mollusca classis = Bivalvia ordo = Unionoida familia = Unionidae genus = Alasmidonta species = A. raveneliana binomial = Alasmidonta raveneliana… …
52Marine habitats — Coral reefs provide marine habitats for tube sponges, which in turn become marine habitats for fishes Littoral zone …
53Onondaga Lake — Location Onondaga County, New York, USA Coordinates …
54Industrial wastewater treatment — covers the mechanisms and processes used to treat waters that have been contaminated in some way by anthropogenic industrial or commercial activities prior to its release into the environment or its re use.Most industries produce some wet waste… …
55Lentic ecosystems — are the ecosystems of lakes, ponds and swamps. Included in these environments are the biotic interactions (amongst plants, animals and micro organisms) together with the abiotic interactions (physical and chemical).cite book | last = Brown first …
56Death Valley National Park — IUCN Category II (National Park) …
57Imhoff tank — The Imhoff tank, named for German engineer Karl Imhoff (1876–1965), is a chamber suitable for the reception and processing of sewage. It may be used for the clarification of sewage by simple settling and sedimentation, along with anaerobic… …
58Henry W. Posamentier — Henry William Posamentier (born December 4, 1948) is an American geologist. He helped pioneer and develop the modern approach to sequence stratigraphy, blending the disciplines of sedimentology, stratigraphy, and depositional systems analysis,… …
59separation and purification — ▪ chemistry Introduction in chemistry, separation of a substance into its components and the removal of impurities. There are a large number of important applications in fields such as medicine and manufacturing. General principles… …
60Po (river) — Padus redirects here. For other uses, see Padus (disambiguation). This article is about the Italian river. For the river in the U.S. state of Virginia, see Mattaponi River. Po Old iron bridge over the Po River, Cremona, Lombardy Origin …
