A) Excavation B) Caving C) Geology D) Speleogenesis
A) Sandstone B) Granite C) Limestone D) Basalt
A) Entrance B) Ceiling C) Walls D) Floor
A) Rockology B) Geology C) Speleology D) Cavingology
A) Mammoth Cave B) Carlsbad Caverns C) Sơn Đoòng Cave D) Waitomo Glowworm Caves
A) Luciferin-luciferase reaction B) Oxidation C) Fermentation D) Photosynthesis
A) Swimsuit B) Headlamp C) Sunglasses D) Umbrella
A) Drapery B) Flowstone C) Icicles D) Chandelier
A) Kentucky B) New York C) Tennessee D) California |