mined economically
51Norway — /nawr way/, n. Norwegian, Norge. a kingdom in N Europe, in the W part of the Scandinavian Peninsula. 4,404,456; 124,555 sq. mi. (322,597 sq. km). Cap.: Oslo. * * * Norway Introduction Norway Background: Despite its neutrality, Norway was not able …
52chemical element — Introduction also called element, any substance that cannot be decomposed into simpler substances by ordinary chemical processes. Elements are the fundamental materials of which all matter is composed. This article considers the… …
53china — /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 …
54China — /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 …
55Europe, history of — Introduction history of European peoples and cultures from prehistoric times to the present. Europe is a more ambiguous term than most geographic expressions. Its etymology is doubtful, as is the physical extent of the area it designates.… …
56Copper — For other uses, see Copper (disambiguation) …
57Upper Hirst — The Upper Hirst is a coal seam in central Scotland that was mined in the 1950s through to 2002, mainly to supply Kincardine Power Station, and later, Longannet Power Station, in Fife.This was a low quality coal, unsuitable for most other purposes …
58Coal mining in Australia — Coal is mined in every state of Australia as well as the Northern Territory. It is used to generate electricity and is exported. 75% of the coal mined in Australia is exported, mostly to eastern Asia. In 2000/01, 258.5 million tonnes of coal was… …
59salt — salt1 saltlike, adj. /sawlt/, n. 1. a crystalline compound, sodium chloride, NaCl, occurring as a mineral, a constituent of seawater, etc., and used for seasoning food, as a preservative, etc. 2. table salt mixed with a particular herb or… …
60SALT — /sawlt/, n. See Strategic Arms Limitation Talks. * * * I Chemical compound formed when the hydrogen of an acid is replaced by a metal or its equivalent, such as ammonium (NH4). Typically, an acid and a base react to form a salt and water. Most… …
