to measure the depth of a shelf

  • 61commercial 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… …

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  • 622004 Indian Ocean earthquake and tsunami — 2004 Indian Ocean earthquake Tsunami strikes Ao Nang, Thailand. Date 00:58:53, December 26 …

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  • 63Bathymetry — Present day Earth bathymetry (and altimetry). Data from the National Geophysical Data Center s TerrainBase Digital Terrain Model. Bathymetry is the study of underwater depth of lake or ocean floors. In other words, bathymetry is the underwater… …

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  • 64Caspian Sea — a salt lake between SE Europe and Asia: the largest inland body of water in the world. ab. 169,000 sq. mi. (438,000 sq. km); 85 ft. (26 m) below sea level. * * * Inland salt lake between Europe and Asia, bordering Azerbaijan, Russia, Kazakhstan,… …

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  • 65MythBusters (2011 season) — Country of origin Australia United States Broadcast Original channel Discovery Channel Original run …

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  • 66Climate of Antarctica — Surface temperature of Antarctica in winter and summer The climate of Antarctica is the coldest on the whole of Earth. Antarctica has the lowest naturally occurring temperature ever recorded on the ground on Earth: −89.2 °C (−128.6 °F)… …

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  • 67battery — /bat euh ree/, n., pl. batteries. 1. Elect. a. Also called galvanic battery, voltaic battery. a combination of two or more cells electrically connected to work together to produce electric energy. b. cell (def. 7a). 2. any large group or series… …

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  • 68Battery — /bat euh ree/, n. The, a park at the S end of Manhattan, in New York City. Also called Battery Park. * * * Any of a class of devices, consisting of a group of electrochemical cells (see electrochemistry), that convert chemical energy into… …

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  • 69Finland — /fin leuhnd/, n. 1. Finnish, Suomi. a republic in N Europe: formerly a province of the Russian Empire. 5,109,148; 130,119 sq. mi. (337,010 sq. km). Cap.: Helsinki. 2. Gulf of, an arm of the Baltic, S of Finland. * * * Finland Introduction Finland …

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  • 70Guatemala — Guatemalan, adj., n. /gwah teuh mah leuh/; Sp. /gwah te mah lah/, n. 1. a republic in N Central America. 11,558,407; 42,042 sq. mi. (108,889 sq. km). 2. Also called Guatemala City. a city in and the capital of this republic. 917,322. * * *… …

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