Most oceanic plateaus are
A. large fan-shaped mounds deposited by turbidity currents.
B. small pieces rifted apart from continents.
C. constructed by volcanic eruptions probably over mantle plumes.
D. places where the seafloor has been buckled upward by convergence.
Answer: C
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Two processes which chemically alter parent material are
A. freezing and thawing. B. oxidation and hydrolysis. C. decomposition and oxidation. D. hydrolysis and liming.
The Columbia Plateau in the northwestern United States is an excellent example of ________
A) an eroded shield volcano B) a caldera C) pyroclastic flow deposits D) flood basalts
The behavior of which isotope is important for magnetic resonance imaging?
A) C-12 B) H-1 C) H-2 D) O-16
What created the Dust Bowl?
A. Intense land cultivation B. Both a drought and intense land cultivation C. The drying up of the Ogallala Aquifer D. A large, engineered water diversion E. A drought