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