The region is mountainous and hilly, although with physical diversity. Three broad physiographic areas run laterally--lowland Tarai Region in south; central lower mountains and hills constituting Hill Region; high Himalayas, with 8,796-meters-high Mount Everest and other peaks forming Mountain Region in north. Of total land area, only 20 percent cultivatable. Deforestation severe problem; by 1988 forests covered approximately 30 percent of land area.
It has five climatic zones based on altitude range from subtropical in south, to cool summers and severe winters in north. Annual rainfall with seasonal variations depending on monsoon cycle, which provides 60 to 80 percent of total annual rainfall; 2,500 millimeters in eastern part of country; 1,420 millimeters around Kathmandu; 1,000 millimeters in western Nepal.
Although Nepal shares no boundary with Bangladesh, the two countries are separated by a narrow strip of land about 21 kilometer (13 mi) wide, called the Chicken's Neck. Efforts are underway to make this area a free-trade zone
Ethnic Groups: Three major ethnic groups in terms of origin: Indo-Nepalese, Tibeto-Nepalese, and indigenous Nepalese, composed of Newar, Bhote, Rai, Limbu, Sherpa, Gurung, Tamang, Magar, Thakali, Brahman, and other smaller ethnic groups.
Languages: Nepali, written in Devanagari script, official, national language; spoken by almost 60 percent of population. More than twelve other languages with numerous dialects, although rarely spoken outside ethnic enclaves.
Religion: Only official Hindu state in world although intermingling and synthesis of Hindu and Buddhist beliefs in practice. About 89.5 percent of population Hindu, approximately 5.3 percent and 2.7 percent, Buddhist and Muslim, respectively; remainder, other religions, including Christianity.