A) Morca Cave B) Krubera Cave C) Veryovkina Cave D) Mount Elbrus Cave
A) Russia B) France C) Georgia D) Ukraine
A) 2,212 meters B) 2,050 meters C) 2,300 meters D) 1,980 meters
A) Luray Caverns B) Mammoth Cave C) Son Doong Cave D) Waitomo Cave
A) Sea Cave B) Limestone C) Volcanic D) Ice
A) Astronomical data B) Meteorological phenomena C) Botanical diversity D) Geological history
A) Bulgarian Mountains B) Abkhazia, Georgia C) Russia D) Armenia
A) It contains a lake. B) It has its own ecosystem. C) It is completely dark. D) It has many stalactites.
A) Son Doong Cave B) Hang En Cave C) Phong Nha Cave D) Ailao Mountain Cave |