EPA- environmental protection agency
The correct answer is the “Mariana Trench”
One of the answers is 5. Floods Annually.
I have this on a test and its asking for 3 answers. I do not know the other two, but you only asked for one so...
Answer:
A. They are extremely difficult to extinguish because fuel obviously is abundant and oxygen can enter easily, even through joints in surrounding rock.
Explanation:
Coal bed fires refers to spontaneous combustion which are triggered by human activity (mining), lightning, wildfires etc.
This usually happen underground when the coal beds are exposed to oxygen as a result of mining activities or human induced fires or combustion.
