Afghanistan (full name, Islamic Republic of Afghanistan) covers an area of approximately 652,000 sq km. Its terrain mostly consists of rugged mountains, plains in the north and southwest. Afghanistan borders China, Iran, Pakistan, Tajikistan, Turkmenistan and Uzbekistan, and is completely landlocked. The country is divided into 34 provinces: Badakhshan, Badghis, Baghlan, Balkh, Bamyan, Daykundi, Farah, Faryab, Ghazni, Ghor, Helmand, Herat, Jowzjan, Kabul, Kandahar, Kapisa, Khost, Kunar, Kunduz, Laghman, Logar, Nangarhar, Nimroz, Nuristan, Paktika, Paktiya, Panjshir, Parwan, Samangan, Sar-e Pul, Takhar, Uruzgan, Wardak and Zabul. Kabul is the capital, with a time difference of 4:30 hours ahead of GMT. The currency is the Afghani, and exports include fruit, nuts, carpets, wool and opium. The population of approximately 33,600,000 people comprises an ethnic makeup that is 42% Pashtun and 27% Tajik. The primary languages are Pashto and Dari (Persian), and the predominant religion is Islam.