| Location | Oceania, two archipelagic island chains of 29 atolls, each made up of many small islets, and five single islands in the North Pacific Ocean, about one-half of the way from Hawaii to Australia |
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| Geographic coordinates | 9 00 N, 168 00 E |
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| Zone | Oceania |
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| Area | total: 11,854.3 sq km land: 181.3 sq km water: 11,673 sq km (note - lagoon waters) note: includes the atolls of Bikini, Enewetak, Kwajalein, Majuro, Rongelap, and Utirik |
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| Land boundaries | 0 km |
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| Coastline | 370.4 km |
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| Maritime claims | territorial sea: 12 nm contiguous zone: 24 nm exclusive economic zone: 200 nm |
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| Climate | tropical; hot and humid; wet season May to November; islands border typhoon belt |
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| Terrain | low coral limestone and sand islands |
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| Elevation extremes | lowest point: Pacific Ocean 0 m highest point: unnamed location on Likiep 10 m |
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| Natural resources | coconut products, marine products, deep seabed minerals |
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| Irrigated land | 370.4 km |
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| Natural hazards | infrequent typhoons |
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Environment - current issues | inadequate supplies of potable water; pollution of Majuro lagoon from household waste and discharges from fishing vessels |
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Environment - international agreements | party to: Biodiversity, Climate Change, Climate Change-Kyoto Protocol, Desertification, Hazardous Wastes, Law of the Sea, Ozone Layer Protection, Ship Pollution, Wetlands, Whaling signed, but not ratified: none of the selected agreements |
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| Geography - note | Bikini and Enewetak are former US nuclear test sites; Kwajalein, the famous World War II battleground, is used as a US missile test range; island city of Ebeye is the second largest settlement in the Marshall Islands, after the capital of Majuro, and one of the most densely populated locations in the Pacific |
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