irregular source of air pollution
91Athens — /ath inz/, n. 1. Greek, Athenai. a city in and the capital of Greece, in the SE part. 885,136. 2. Greater, a metropolitan area comprising the city of Athens, Piraeus, and several residential suburbs. 2,530,000. 3. a city in N Georgia. 42,549. 4.… …
92North American Desert — ▪ region, North America Introduction vast, irregular belt of inhospitable terrain (desert) that stretches north to south down the western side of the North American continent from southern Oregon and Idaho to northern Mexico. It roughly… …
93lake — lake1 /layk/, n. 1. a body of fresh or salt water of considerable size, surrounded by land. 2. any similar body or pool of other liquid, as oil. 3. (go) jump in the lake, (used as an exclamation of dismissal or impatience.) [bef. 1000; ME lak(e) …
94Lake — /layk/, n. Simon, 1866 1945, U.S. engineer and naval architect. * * * I Relatively large body of slow moving or standing water that occupies an inland basin. Lakes are most abundant in high northern latitudes and in mountain regions, particularly …
95Mathematics and Physical Sciences — ▪ 2003 Introduction Mathematics Mathematics in 2002 was marked by two discoveries in number theory. The first may have practical implications; the second satisfied a 150 year old curiosity. Computer scientist Manindra Agrawal of the… …
96Europe — /yoor euhp, yerr / for 1; /yoo roh pee, yeuh / for 2, n. 1. a continent in the W part of the landmass lying between the Atlantic and Pacific oceans, separated from Asia by the Ural Mountains on the E and the Caucasus Mountains and the Black and… …
97North America — North American. the northern continent of the Western Hemisphere, extending from Central America to the Arctic Ocean. Highest point, Mt. McKinley, 20,300 ft. (6187 m); lowest, Death Valley, 276 ft. (84 m) below sea level. 400,000,000 including… …
98Wetland — For other uses, see Wetland (disambiguation). The Florida Everglades massive wetland system in the United States saw 1.7 billion gallons of fresh water flushed from it daily and pumped into the ocean following one of the most successive water… …
99Philippines — /fil euh peenz , fil euh peenz /, n. (used with a pl. v.) an archipelago of 7083 islands in the Pacific, SE of China: formerly (1898 1946) under the guardianship of the U.S.; now an independent republic. 76,103,564; 114,830 sq. mi. (297,410 sq.… …
100Australia — /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… …
