Earthquakes with a very deep focus are usually located along ________

A) a divergent plate boundary such as the Mid-Atlantic Ridge
B) a convergent boundary such as the Peru-Chile trench
C) a hot spot chain such as the Hawaiian Islands
D) a transform boundary such as the San Andreas


B

Environmental & Atmospheric Sciences

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a. True b. False

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Indicate whether the statement is true or false

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Common reasons for building failure in the World Series quake included poor connections of houses to their foundations, buildings made of unreinforced masonry or brick-facade construction, and two- to five-story buildings deficient in shear-bearing internal walls and supports.

Answer the following statement true (T) or false (F)

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Which method do scientists argue is most effective at reducing the amount of air and water pollution?

A. A shift to energy sources such as solar and windpower. B. Attaching pollution control devices to smokestacks. C. Injecting steam into the ground to remove groundwater contaminants. D. Collecting runoff from construction sites before it enters a river.

Environmental & Atmospheric Sciences