Which of the following lavas make up 90 percent of the total volume of lava on Earth?
A) Basaltic
B) Andesitic
C) Rhyolitic
Answer: A
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One important lesson we have learned from NAFTA is that:
A. both critics and supporters can effectively argue their perspectives. B. lax environmental laws in Mexico have not been a location consideration of American companies. C. neither party to the agreement has yet profited from increased trade. D. the price of goods produced in Mexico is the same as for good produced in the U.S.
What conditions are necessary to maintain an ocean of liquid water permanently? Why is having a
liquid ocean so important? What will be an ideal response?
Suburbanization
A) has reduced urban area but increased rural area. B) has expanded urban territory but reduced population density. C) has increased population density in city centers. D) has resulted in the wholesale abandonment of urban environments. E) has only occurred in North America.
Along which tectonic boundary would the greatest amount of magma be generated every year? Why?
A) Transform boundaries: magma produced from friction B) Convergent boundaries: magma produced by dehydration of plate water and partial melting C) Divergent boundaries: magma produced by decompression melting