Search results
Results from the WOW.Com Content Network
Formed in Carboniferous/Permian limestone, the main Sơn Đoòng cave passage is the largest known cave passage in the world by volume – 3.84 × 10 7 m 3 (1.36 × 10 9 cu ft), according to BCRA expedition leader Howard Limbert. It is more than 5 kilometres (3.1 mi) long, 200 metres (660 ft) high and 150 metres (490 ft) wide.
Ethnolinguistic map of Indochina, 1970. Note: map situation has now changed due to internal migration. The Vietnamese government recognizes 54 ethnic groups , of which the Viet (Kinh) is the largest; according to official Vietnamese figures (2019 census), ethnic Vietnamese account for 85.3% of the nation's population and the non-Vietnamese ...