Qatar (full name, The State of Qatar) covers an area of approximately 11,400 sq km with a terrain consisting of mostly flat and barren desert covered with loose sand and gravel. Qatar borders Saudi Arabia, and has 563 km of coastline. The country is divided into 10 municipalities: Ad Dawhah, Al Ghuwayriyah, Al Jumayliyah, Al Khawr, Al Wakrah, Ar Rayyan, Jarayan al Batinah, Madinat ash Shamal, Umm Sa'id and Umm Salal. Doha is the capital, with a time difference of 3 hours ahead of GMT. The currency is the Riyal, and the main exports are oil and gas. The population of approximately 833,000 people comprises an ethnic makeup that is 40% Arab, 18% Indian, 18% Pakistani and 10% Iranian. The primary language is Arabic, and the predominant religion is Islam.