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  • 24-03-2021
  • Social Studies
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coal mining in china 1800

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123savannah123
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  • 24-03-2021

Answer:

Quite literally, early coal mines had a furnace at the bottom of a shaft. More dangerous, however, was the danger that the ventilating furnace would ignite mine timbers deep in the earth, and the resulting fire consume the mine's entire oxygen supply and suffocate the miners.

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