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Son Doong Cave - Quiz
Contributed by: Dale
  • 1. Son Doong Cave, located in Vietnam's Phong Nha-Ke Bang National Park, is renowned for its immense size. Which of the following statements is true about Son Doong Cave's dimensions?
A) It is the most recently discovered cave.
B) It is the world's deepest cave.
C) It has the longest underground river.
D) It is the world's largest cave passage.
  • 2. What natural phenomenon created the vast chambers of Son Doong Cave over millions of years?
A) Erosion by underground rivers.
B) Volcanic activity.
C) Glacial ice melt.
D) Tectonic plate movement.
  • 3. What is the name of the river that flows through Son Doong Cave?
A) The Han River.
B) The Red River.
C) The Rao Thuong River.
D) The Mekong River.
  • 4. One of the most striking features of Son Doong Cave is the presence of 'jungle domes'. What are these?
A) Underground waterfalls.
B) Areas where the cave roof has collapsed, allowing sunlight and vegetation to grow.
C) Massive stalactite formations.
D) Natural skylights in the cave ceiling.
  • 5. What unique geological formation, resembling teeth, is found in Son Doong Cave?
A) Cave pearls.
B) Tufa formations.
C) Stromatolites.
D) Speleothems.
  • 6. Son Doong Cave is home to a diverse ecosystem. Which of these is a known inhabitant?
A) The komodo dragon.
B) The Bengal tiger.
C) The Son Doong rat.
D) The giant panda.
  • 7. Who is credited with the first successful descent and exploration of Son Doong Cave in 2009?
A) Jacques Cousteau.
B) Robert Ballard.
C) Don Walsh.
D) Howard Limbert.
  • 8. Son Doong Cave's discovery was officially announced to the public in which year?
A) 2005
B) 2012
C) 2008
D) 2010
  • 9. What is the primary reason Son Doong Cave remains largely pristine and protected?
A) The lack of any valuable resources within the cave.
B) A complete ban on all scientific research.
C) Its designation as a highly populated tourist attraction.
D) Its remote location and limited accessibility.
  • 10. The immense size of Son Doong Cave means it could potentially house which of the following?
A) A large stadium.
B) A skyscraper.
C) A small village.
D) A shopping mall.
  • 11. What is the typical climate inside Son Doong Cave?
A) Cold and dry, with seasonal variations.
B) Freezing, with a layer of ice.
C) Hot and arid, with very little moisture.
D) Humid and warm, with a constant temperature.
  • 12. The 'Great Wall of Vietnam' is a massive calcite formation found in Son Doong Cave. What is its approximate height?
A) Over 70 meters (230 feet).
B) Over 10 meters (33 feet).
C) Over 500 meters (1640 feet).
D) Over 200 meters (650 feet).
  • 13. What type of rock is Son Doong Cave primarily formed within?
A) Limestone.
B) Granite.
C) Marble.
D) Sandstone.
  • 14. What is one of the major challenges faced by explorers and tourists when navigating Son Doong Cave?
A) Navigating extremely difficult terrain and large distances.
B) Avoiding venomous snakes and insects.
C) Dealing with extreme cold and lack of oxygen.
D) Overcoming strong magnetic fields.
  • 15. Son Doong Cave is part of a larger cave system. Which other significant cave is located nearby and also within Phong Nha-Ke Bang National Park?
A) Phong Nha Cave.
B) Tien Son Cave.
C) Paradise Cave.
D) Dau Go Cave.
  • 16. What is the estimated age of Son Doong Cave?
A) Approximately 2 to 5 million years old.
B) Approximately 50 million years old.
C) Approximately 10,000 years old.
D) Approximately 500,000 years old.
  • 17. Which country is Son Doong Cave located in?
A) Vietnam.
B) Thailand.
C) Laos.
D) Cambodia.
  • 18. The expeditions to Son Doong Cave are managed by which Vietnamese company?
A) Oxalis Adventure.
B) Saigon Tourist.
C) Hanoi Tourism.
D) Vietnam Airlines.
  • 19. What is the primary purpose of the limited and controlled tourism to Son Doong Cave?
A) To provide unrestricted access to the public.
B) To allow for extensive scientific research.
C) To exploit its resources for commercial gain.
D) To fund conservation efforts and local communities.
  • 20. What unique visual effect can be observed when sunlight enters Son Doong Cave through its 'jungle domes'?
A) The creation of mist and fog.
B) The illumination of crystal formations.
C) The growth of bioluminescent plants.
D) The formation of rainbows.
  • 21. What are the large, tree-like formations of calcite that grow from the cave floor in Son Doong Cave called?
A) Draperies.
B) Stalagmites.
C) Columns.
D) Stalactites.
  • 22. The discovery of Son Doong Cave was initially made by a local resident in what year?
A) 1991
B) 1975
C) 2000
D) 1980
  • 23. What is the approximate length of the main passage of Son Doong Cave?
A) Over 5 kilometers (3 miles).
B) Over 1 kilometer (0.6 miles).
C) Over 10 kilometers (6 miles).
D) Over 20 kilometers (12 miles).
  • 24. What UNESCO World Heritage site is Son Doong Cave a part of?
A) Imperial City of Hue.
B) Hoi An Ancient Town.
C) Ha Long Bay.
D) Phong Nha-Ke Bang National Park.
  • 25. The exploration of Son Doong Cave requires significant logistical planning. What is a crucial element for such expeditions?
A) Communicating via satellite phone from anywhere inside.
B) Carrying all necessary supplies for extended periods.
C) Reliance on local infrastructure and services.
D) Using large vehicles for transportation within the cave.
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