| Location | Southern Africa, group of islands at the northern mouth of the Mozambique Channel, about two-thirds of the way between northern Madagascar and northern Mozambique |
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| Geographic coordinates | 12 10 S, 44 15 E |
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| Zone | Africa |
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| Area | total: 2,170 sq km land: 2,170 sq km water: 0 sq km |
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| Land boundaries | 0 km |
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| Coastline | 340 km |
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| Maritime claims | territorial sea: 12 nm exclusive economic zone: 200 nm |
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| Climate | tropical marine; rainy season (November to May) |
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| Terrain | volcanic islands, interiors vary from steep mountains to low hills |
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| Elevation extremes | lowest point: Indian Ocean 0 m highest point: Le Kartala 2,360 m |
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| Natural resources | NEGL |
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| Irrigated land | 340 km |
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| Natural hazards | cyclones possible during rainy season (December to April); Le Kartala on Grand Comore is an active volcano |
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Environment - current issues | soil degradation and erosion results from crop cultivation on slopes without proper terracing; deforestation |
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Environment - international agreements | party to: Biodiversity, Climate Change, Desertification, Endangered Species, Hazardous Wastes, Law of the Sea, Ozone Layer Protection, Ship Pollution, Wetlands signed, but not ratified: none of the selected agreements |
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| Geography - note | important location at northern end of Mozambique Channel |
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