Once a mineral resource becomes economically viable to mine, it remains that way until the majority of the deposit has been extracted.
Answer the following statement true (T) or false (F)
False
Fluctuations in the market value of a particular mineral, due to supply and demand changes for example, can make a marginally economic deposit suddenly profitable to mine. Likewise, once-profitable mining operations may be forced to shut down rather abruptly.
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The Three Gorges Dam produces about ______ percent of China’s energy’s output
A. 10 B. 25 C. 20 D. 12
What class of mineral forms when the element C is bonded with element O, as in the mineral calcite?
A. carbonates B. silicates C. halides D. oxides E. sulfides
How did use of groundwater affect surface water resources in the case of the San Joaquin River,
California? What will be an ideal response?
What are at least two levels at which soil conservation must be practiced? Give an example of what is being done at each level
What will be an ideal response?