For the most part, Oman comprises a narrow coastal plain backed by hill ranges and an interior desert plateau. The highest point is Jebel Sham (c.9,900 ft/3,018 m).The inhabitants are mostly Arabs; there are also minorities of Baluchis, South Asians, East Africans, and migrant workers of varied ethnicities. About 75% are Ibadhi Muslims; the rest are mostly Sunni or Shiite Muslims or Hindus. Arabic is the official language; English, Baluchi, and Urdu are also spoken.
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