degradation of coal
111Bangladesh — /bahng gleuh desh , bang /, n. republic in S Asia, N of the Bay of Bengal: a member of the Commonwealth of Nations; a former province of Pakistan. 125,340,261; 54,501 sq. mi. (141,158 sq. km). Cap.: Dhaka. Formerly, East Pakistan. * * *… …
112Uzbekistan — /ooz bek euh stan , stahn , uz /, n. a republic in S central Asia. 23,860,452; 172,741 sq. mi. (447,400 sq. km). Cap.: Tashkent. Formerly, Uzbek Soviet Socialist Republic. * * * Uzbekistan Introduction Uzbekistan Background: Russia conquered… …
113heterocyclic compound — Any of a class of organic compounds whose molecules contain one or more rings of atoms with at least one atom (the heteroatom) being an element other than carbon, most frequently oxygen, nitrogen, or sulfur. As in regular cyclic hydrocarbons,… …
114Yangtze River — Coordinates: 31°23′37″N 121°58′59″E / 31.39361°N 121.98306°E / 31.39361; 121.98306 …
115Global climate model — AGCM redirects here. For Italian competition regulator, see Autorità Garante della Concorrenza e del Mercato. Climate models are systems of differential equations based on the basic laws of physics, fluid motion, and chemistry. To “run” a model,… …
116Radiation chemistry — is a subdivision of nuclear chemistry which is the study of the chemical effects of radiation on matter; this is very different from radiochemistry as no radioactivity needs to be present in the material which is being chemically changed by the… …
117bacteria — bacterial, adj. bacterially, adv. /bak tear ee euh/, n.pl., sing. bacterium / tear ee euhm/. ubiquitous one celled organisms, spherical, spiral, or rod shaped and appearing singly or in chains, comprising the Schizomycota, a phylum of the kingdom …
118river — river1 riverless, adj. riverlike, adj. /riv euhr/, n. 1. a natural stream of water of fairly large size flowing in a definite course or channel or series of diverging and converging channels. 2. a similar stream of something other than water: a… …
119Thailand — /tuy land , leuhnd/, n. 1. Formerly, Siam. a kingdom in SE Asia: official name of Siam 1939 45 and since 1949. 59,450,818; 198,242 sq. mi. (513,445 sq. km). Cap.: Bangkok. 2. Gulf of. Also called Gulf of Siam. an arm of the South China Sea, S of… …
120Spotlight: Pollution in Eastern Europe — ▪ 1996 In 1995 Eastern Europe pondered ways to clean itself up. Well it might, since it is arguably the most polluted region on Earth. (See Map >.) From Poland to Romania and from the Czech Republic to Moldova, its skies are dirty, its rivers… …
