Answer:
c. Smokestacks
Step-by-step explanation:
Steam ships burned coal. The smokestacks funneled the smoke out of the boiler furnaces into the air. If the ship was wrecked, the smokestacks broke off or deteriorated over time, and holes were left where they should have been.
c) smokestacks
a funnel is a tube or pipe/ metal chimney on a ship or steam engine
smokestacks is a chimney or funnel for discharging smoke from a locomotive, ship
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