to measure the depth of a shelf
71Malta — /mawl teuh/, n. 1. an island in the Mediterranean between Sicily and Africa. 95 sq. mi. (246 sq. km). 2. a former British colony consisting of this island and two small adjacent islands: now an independent sovereign state and a member of the… …
72Storm surge — or tidal surge is an offshore rise of water associated with a low pressure weather system, typically a tropical cyclone. Storm surge is caused primarily by high winds pushing on the ocean s surface. The wind causes the water to pile up higher… …
73Space debris — populations seen from outside geosynchronous orbit (GEO). Note the two primary debris fields, the ring of objects in GEO, and the cloud of objects in low earth orbit (LEO) …
74Mariana Trench — This article is about the ocean trench. For the Canadian band, see Marianas Trench (band). Coordinates: 11°21′N 142°12′E / 11.35°N 142.2°E / 11.35; 14 …
75Pleistocene Epoch — Earlier and longer of the two epochs that constitute the Quaternary Period. The Pleistocene began с 1.8 million years ago and ended с 10,000 years ago. It was preceded by the Pliocene Epoch of the Tertiary Period and followed by the Holocene… …
76Denmark — <p></p> <p></p> Introduction ::Denmark <p></p> Background: <p></p> Once the seat of Viking raiders and later a major north European power, Denmark has evolved into a modern, prosperous nation that… …
77Battery (electricity) — For other uses, see Battery (disambiguation). Various cells and batteries (top left to bottom right): two AA, one D, one handheld ham radio battery, two 9 volt (PP3), two AAA, one C, one …
78Kenya — Kenyan, adj., n. /ken yeuh, keen /, n. 1. a republic in E Africa: member of the Commonwealth of Nations; formerly a British crown colony and protectorate. 28,803,085; 223,478 sq. mi. (578,808 sq. km). Cap.: Nairobi. 2. Mount, an extinct volcano… …
79Mexico — /mek si koh /, n. 1. a republic in S North America. 97,563,374; 761,530 sq. mi. (1,972,363 sq. km). Cap.: Mexico City. 2. a state in central Mexico. 6,245,000; 8268 sq. mi. (21,415 sq. km). Cap.: Toluca. 3. Gulf of, Mexican, Golfo de México /gawl …
80mining — /muy ning/, n. 1. the act, process, or industry of extracting ores, coal, etc., from mines. 2. the laying of explosive mines. [1250 1300; ME: undermining (walls in an attack); see MINE2, ING1] * * * I Excavation of materials from the Earth s… …
