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What was the us annual production of coal

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Research coal deposits in the USA and US coal mine production.

Approximately, what was the US annual production of coal from mines in recent years? What was the coal production of the Appalachian or Eastern province? Focusing on this province: in which geologic age of the chart shown in class is this deposit located? How old is this coal deposit? How does the sulphur content vary (general trend)? What is the primary use of this coal?

Reference no: EM13225878

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