Partial melting of oceanic crust and silica-rich sediments of continental margins ____
A)yields magma richer in basalt than the source rock
B)is a major cause of earthquakes
C)causes off-gassing which increases global warming
D)yields magma richer in silica than the source rock
E)will form sedimentary rock
D
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In general, coral reef ecosystems globally
A) provide very little ecosystem capital. B) are in critical condition in the Caribbean, but healthy elsewhere. C) recover quickly from human-caused damage because corals grow quickly. D) are sensitive to pollution, physical breakage, and invasive species.
How can agricultural irrigation practices be altered to decrease loss of fresh water?
What will be an ideal response?
What is distinctive about Jupiter's satellite Io?
What will be an ideal response?
What is one tactic Russia uses to achieve control over neighboring countries that have displeased Russian leaders? a. It refuses to receive imports from opposing country
b. It closes the Russian border to the opposing country. c. It captures opposing leaders and sends them to prison camps. d. It assassinates opposing leaders. e. It cuts off or raises prices on natural gas to the opposing country.