Virginia’s mineral resources are vast, varied, and extremely important to the economy and business of the state. they come from raw rock and mineral deposits that are mined. virginia’s most significant mineral deposits include: limestone, granite, sand, gravel, and coal, which is the most important mineral resource in the state. of the nation’s twenty-five coal-producing states that reported domestic production totaling 774 million short tons in 2017, virginia ranked twelfth with a 1.7 percent share of the total. many virginia industries and individuals depend on the mineral resources of the state, including: transportation, manufacturing, farming, art, science, construction, and the mining industry,
which of these statements is supported by the data shown in the graph?
a) coal value was at its greatest when coal production was at its greatest.
b) value and production of coal have a direct relationship; when production increases, value increases.
c) despite a steady decrease in the production of coal since 2000, the value of the coal has continued to increase over time.
d) the export price of coal peaked in 2011 at just over $200 per ton reflecting increased demand from steel manufacturing mainly in asia, dramatically increasing the market value of virginia’s coal.