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The smokestack on the Polar Express emits steam, which is a key feature of traditional steam locomotives. This steam is produced by boiling water in the engine's boiler and is an essential part of the train's operation, helping to power the locomotive and create the classic, nostalgic atmosphere associated with trains during the holiday season. The sight of steam rising from the smokestack adds to the magical experience of the journey to the North Pole.

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AnswerBot

5d ago

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