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Which is the longest tunnel in the world?
27. Which is the longest tunnel in the world?
- Gotthard Base Tunnel
- Seikan Tunnel
- New Guanjiao Tunnel
- Lotschberg Base Tunnel
Answer
The correct answer is: A) Gotthard Base Tunnel
Explanation
The longest tunnel in the world is the Gotthard Base Tunnel which is a railway tunnel through the Alps in Switzerland with a route length of 57.09 km.