mined economically
111mercury processing — Introduction preparation of the ore for use in various products. Mercury (Hg) has a unique combination of physical properties. Its low melting point (−38.87° C [−38° F]) and boiling point (356.9° C [674° F]), high specific gravity (13 …
112Coal upgrading technology — refers to a class of technologies developed to remove moisture and certain pollutants from low rank coals such as sub Bituminous coal and lignite (brown coal) and raise their calorific values. Companies located in Australia, Germany and the… …
113History of the Caribbean — The history of the Caribbean reveals the significant role the region played in the colonial struggles of the European powers since the fifteenth century. In the twentieth century the Caribbean was again important during World War II, in the… …
114Polisario Front — جبهة البوليساريو Jabhat al Bōlīsāryū Polisario Front Spanish name Frente Polisario Secretary General Mohamed Abdelaziz Founded 1973 (1973) …
115Manufacturing engineering — is a field dealing with different manufacturing practices and the research and development of processes, machines and equipment. Contents 1 Overview 2 History 2.1 Modern developments 3 Education …
116Uranium depletion — is the inescapable result of extracting and consuming uranium since it is a finite resource. The journal Environmental Science and Technology argues that the availability of high grade uranium ore will deplete over time making the fuel more… …
117Australia — /aw strayl yeuh/, n. 1. a continent SE of Asia, between the Indian and the Pacific oceans. 18,438,824; 2,948,366 sq. mi. (7,636,270 sq. km). 2. Commonwealth of, a member of the Commonwealth of Nations, consisting of the federated states and… …
118Colombia — Colombian, adj., n. /keuh lum bee euh/; Sp. /kaw lawm byah/, n. a republic in NW South America. 37,418,290; 439,828 sq. mi. (1,139,155 sq. km). Cap.: Bogotá. * * * Colombia Introduction Colombia Background: Colombia was one of the three countries …
119Denmark — /den mahrk/, n. a kingdom in N Europe, on the Jutland peninsula and adjacent islands. 5,268,775; 16,576 sq. mi. (42,930 sq. km). Cap.: Copenhagen. * * * Denmark Introduction Denmark Background: Once the seat of Viking raiders and later a major… …
120New Zealand — New Zealander. /zee leuhnd/ a country in the S Pacific, SE of Australia, consisting of North Island, South Island, and adjacent small islands: a member of the Commonwealth of Nations. 3,587,275; 103,416 sq. mi. (267,845 sq. km). Cap.: Wellington …
