A) On the Galala Plateau, Egypt
B) In the Sahara Desert
C) Near the Nile Delta
D) In the Sinai Peninsula

A) Volcanic cave system
B) Glacier-formed cave
C) Karst-based subterranean environment
D) Cavern formed by river erosion

A) Eocene era
B) Jurassic era
C) Cretaceous era
D) Permian era

A) 100 miles west
B) 30 miles east
C) 50 miles north-northeast
D) 71 miles (115 km) south-southeast

A) By a group of explorers hiking in the area
B) After quarry blasting created an entrance
C) During an archaeological dig
D) Through satellite imaging

A) 3,000 ft (914 m)
B) 4,000 ft (1,219 m)
C) 1,500 ft (460 m)
D) 2,300 ft (700 m)

A) 30 ft (9 m)
B) 70 ft (21 m)
C) 100 ft (30 m)
D) 50 ft (20 m)

A) Granite
B) Marble
C) Sandstone
D) Alabaster

A) Stalactites and stalagmites
B) Ice formations
C) Geysers and hot springs
D) Fossilized remains of dinosaurs

A) 2000
B) 1985
C) 1992
D) 2010