Identify the statement that is true about coal-bed fires.

Geography

2 answers:

kvasek [131]2 years ago

5 0

Answer:

The correct answer is B. They cannot start from spontaneous combustion; an "outside event" is necessary

Explanation:

Coal bed fires cannot start from spontaneous combustion; an "outside event" is necessary

Maru [420]2 years ago

4 0

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.

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Bogdan [553]

Answer:

Is usually very intense

Explanation:

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<u>So, Rainfall in deserts is usually very intense.</u>

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2 years ago

Using Wien’s Law, estimate the wavelength at which these common materials radiate their peak brightness (show your work):

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Explanation:

Wien’s Law:

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