evidence: Tibet, the remote and mainly-Buddhist territory known as the "roof of the world", is governed as an autonomous region of China. [...] Tibet's economy depends largely on agriculture. Forests and grasslands occupy large parts of the country. The territory is rich in minerals, but poor transport links have limited their exploitation. Tourism is an important source of revenue. [...] No country openly disputes China's claim to sovereignty, and China has blocked all UN Security Council resolutions on Tibet since the People's Republic took over the China seat in the UN in 1971.