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Which one of these is the longest cave in the world?
Correct answer: D. Mammoth Cave
- A. Jewel Cave
- B. Wind Cave
- C. Sistema Ox Bel Ha
- D. Mammoth Cave
Explanation
Mammoth Cave in Kentucky, United States, is the world’s longest known cave system by surveyed passage length. Jewel Cave and Wind Cave are also in the United States but are shorter.
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