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
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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.
Heat and temperature are synonymous terms
a. True b. False
A mirage is an optical effect caused by refraction when light passes from air with one density into air with a different density, causing the object to appear displaced from its true position
Indicate whether the statement is true or false
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)