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13 November, 06:44

What is a firedamp? A. a blanket-like object used to extinguish fires B. the remnants of a fire after it has been extinguished C. a fire extinguisher that uses water to extinguish a fire D. a buildup of mostly methane gas, which is potentially explosive

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  1. 13 November, 06:52
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    Answer: D. A buildup of mostly methane gas, which is pontentially explosive.

    Explanation:

    Firedamp refers to a gas mixture, largely methane, that appear in underground coal mines. It is explosive at concentrations between 5 and 10% in the air.
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