Coal Mine Rescue Field Test 2 Taken from the 2018 Tennessee Mine Rescue Contest held in Cove Lake, TN
Progress Indicator:
Question 2 of 10
2. In some mines, carbon dioxide is liberated from the ________ _________. (MSHA 3028, p. 7 – 6)
Choices:
- rock strata
- mine roof
- mine floor
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