Aluminum is concentrated mainly by:
A) secondary enrichment processes.
B) igneous processes.
C) sedimentary processes.
D) hydrothermal processes.
Correct Answer:
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Q19: Oil shale contains kerogen rather than oil
Q20: Which of the following statements concerning tidal
Q21: Petroleum originates from the accumulation and decomposition
Q22: All of the following statements concerning wind
Q23: Coal typically occurs as:
A) large massive outcrops.
B)
Q25: The principal difference between a petroleum source
Q26: Acid rain is probably not a major
Q27: All of the following represent nonrenewable natural
Q28: Alloys are:
A) extracted from rocks by smelting.
B)
Q29: Coal originates from the accumulation and decomposition
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