intensive cultivation of land
31List of Chinese inventions — A bronze Chinese crossbow mechanism with a buttplate (the wooden components have …
32Integrated Multi-Trophic Aquaculture — (IMTA) is a practice in which the by products (wastes) from one species are recycled to become inputs (fertilizers, food) for another. Fed aquaculture (e.g. fish, shrimp) is combined with inorganic extractive (e.g. seaweed) and organic extractive …
33commercial fishing — Introduction the taking of fish and other seafood and resources from oceans, rivers, and lakes for the purpose of marketing them. Fishing is one of the oldest employments of humankind. Ancient heaps of discarded mollusk shells (shell… …
34Nile River — Arabic Baḥr al Nīl River, eastern and northern Africa. The longest river in the world, it is about 4,132 mi (6,650 km) long from its remotest headstream and 3,473 mi (5,588 km) from Lake Victoria to the Mediterranean Sea. It flows generally north …
35Belgium — /bel jeuhm/, n. a kingdom in W Europe, bordering the North Sea, N of France. 10,203,683; 11,779 sq. mi. (30,508 sq. km). Cap.: Brussels. French, Belgique /bel zheek /; Flemish, België /bel khee euh/. * * * Belgium Introduction Belgium Background …
36Pakistan — /pak euh stan , pah keuh stahn /, n. 1. Islamic Republic of, a republic in S Asia, between India and Afghanistan: formerly part of British India; known as West Pakistan from 1947 71 to distinguish it from East Pakistan (now Bangladesh).… …
37Malawi — Malawian, adj., n. /meuh lah wee/, n. 1. Formerly, Nyasaland. a republic in SE Africa, on the W and S shores of Lake Malawi: formerly a British protectorate and part of the Federation of Rhodesia and Nyasaland; gained independence July 6, 1964; a …
38Ukraine — /yooh krayn , kruyn , yooh krayn/, n. a republic in SE Europe: rich agricultural and industrial region. 50,684,635; 223,090 sq. mi. (603,700 sq. km). Cap.: Kiev. Russian, Ukraina. Formerly, Ukrainian Soviet Socialist Republic. * * * Ukraine… …
39Portugal — /pawr cheuh geuhl, pohr /; Port. /pawrdd too gahl /, n. a republic in SW Europe, on the Iberian Peninsula, W of Spain. (Including the Azores and the Madeira Islands) 9,867,654; 35,414 sq. mi. (91,720 sq. km). Cap.: Lisbon. * * * Portugal… …
40Papua New Guinea — an independent republic in the W Pacific Ocean, comprising the E part of New Guinea and numerous near lying islands, including the Bismarck Archipelago, the Admiralty Islands, the Trobriand Islands, and Bougainville and Buka in the Solomon… …
