According to plate tectonics theory, large ________ circulate molten rock in different directions within Earth's mantle.
A) waves
B) convection cells
C) conductive cells
D) magnetic cells
E) subduction cells
Answer: B) convection cells
Environmental & Atmospheric Sciences
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Between weight and mass, the more fundamental quantity is
A. weight. B. mass. C. both the same D. none of the above
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The storm that sank the Edmund Fitzgerald
A) was a classic Alberta Clipper. B) rode in on the Pineapple Express. C) began as a nor'easter. D) was a Panhandle Hook. E) none of the above
Environmental & Atmospheric Sciences
What is the term for the pair of ridges on the floodplain running parallel to the stream bank?
A. Stream terrace B. Levee C. Point bar D. Backswamp
Environmental & Atmospheric Sciences
Which of the following ecosystems accounts for 18.7% of the world marine fishery?
A) Coastal and coral systems B) Nontropical shelves C) Open ocean D) Tropical shelves E) Upwellings
Environmental & Atmospheric Sciences