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Which is the longest tunnel in the world?

27. Which is the longest tunnel in the world?

1. Gotthard Base Tunnel
2. Seikan Tunnel
3. New Guanjiao Tunnel
4. 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.