conventional long form: Islamic Republic of Iran Capital:Tehran Religion:Islam Language:Persian Location: Middle East, bordering the Gulf of Oman, the Persian Gulf, and the Caspian Sea, between Iraq and Pakistan Geographic coordinates: 32 00 N, 53 00 E Map references: Middle East Area: total: 1.648 million sq km land: 1.636 million sq km water: 12,000 sq km Land boundaries: total: 5,440 km border countries: Afghanistan 936 km, Armenia 35 km, Azerbaijan-proper 432 km, Azerbaijan-Naxcivan exclave 179 km, Iraq 1,458 km, Pakistan 909 km, Turkey 499 km, Turkmenistan 992 km Coastline: 2,440 km; note - Iran also borders the Caspian Sea (740 km) Climate: mostly arid or semiarid, subtropical along Caspian coast Terrain: rugged, mountainous rim; high, central basin with deserts, mountains; small, discontinuous plains along both coasts Elevation extremes: lowest point: Caspian Sea -28 m highest point: Qolleh-ye Damavand 5,671 m Natural resources: petroleum, natural gas, coal, chromium, copper, iron ore, lead, manganese, zinc, sulfur Irrigated land: 94,000 sq km (1993 est.) Natural hazards: periodic droughts, floods; dust storms, sandstorms; earthquakes along western border and in the northeast Environment - current issues: air pollution, especially in urban areas, from vehicle emissions, refinery operations, and industrial effluents; deforestation; overgrazing; desertification; oil pollution in the Persian Gulf; inadequate supplies of potable water Agriculture: accounts for about 20% of GDP; principal products - wheat, rice, other grains, sugar beets, fruits, nuts, cotton, dairy products, wool, caviar; not self-sufficient in food Exchange rates: Iranian rials (IR) per US$1 Administrative divisions: 24 provinces (ostanha, singular - ostan); Azarbayjan-e Bakhtari (West Azerbaijan), Azarbayjan-e Khavari (East Azerbaijan), Bakhtaran, Bushehr, Chahar Mahall va Bakhtiari, Esfahan, Fars, Gilan, Hamadan, Hormozgan, Ilam, Kerman, Khorasan, Khuzestan, Kohkiluyeh va Buyer Ahmadi, Kordestan, Lorestan, Markazi, Mazandaran, Semnan, Sistan va Baluchestan, Tehran, Yazd, Zanjan