Question

Why are the carriage windows pulled up when the train goes through a tunnel

Answer 1

Ans: The train engines always a scream. But when it moves into a tunnel then the noise of the running, rattling train changes and grows different and much louder. Hats why the carriage windows pulled up when the train goes through a tunnel.

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Answer 2

The train engines always a scream. But when it moves into a tunnel then the noise of the running, rattling train changes and grows different and much louder. That's why the carriage windows pulled up when the train goes through a tunnel.