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.
Answer:
it tells us that there is low and high atmospheric pressure
Answer:
Appalachian Plateau
Explanation:
The Appalachian Mountains are a mountain range that runs down the eastern United States.
The Appalachian Plateau is on their northwestern side and stretches from New York to Alabama.
The correct answer among the choices presented above is the fourth option. Magnetic minerals are a part of molten rock at mid-ocean ridges. Examples are chromite, magnetite, limenite and ferberite. Hope this answers the question.
