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Which is the longest cave in the world?
32. Which is the longest cave in the world?
- Mammoth Cave National Park
- Lechuguilla Cave
- Jewel Cave National Monument
- Wind Cave National Park
Answer
The correct answer is: A) Mammoth Cave National Park
Explanation
The longest cave in the world is Mammoth Cave in Kentucky, USA. The length of Mammoth Cave is approximately 651 kilometers (405 miles).