P and S waves do not follow simple paths as they pass through Earth; they speed up, slow down, and change direction, and S waves even disappear when they reach Earth's core.
Answer the following statement true (T) or false (F)
True
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The ocean current called the Gulf Stream
A) carries heat from Hawaii to the Western coast of North America. B) carries heat from the Gulf of Mexico to the North American coast and Northern Europe. C) vertically mixes the Atlantic ocean near the Southern United States. D) travels through all of the world's oceans.
A clastic wedge is a wedge-shaped block of sedimentary rocks bounded by faults that intersect at
an acute angle. Indicate whether the statement is true or false.
What is an "emerging world region"?
A) system of political-economic, sociocultural and environmental elements B) connected locations with shared and distinct characteristics C) areas with similar climate and physical conditions D) political and economic system dominant by another society E) none of the above
If the biosphere is to function properly, its components must be ________
A) replaced from space B) replaced from the ocean C) recycled D) fully used up within biogeochemical cycles E) arranged so that they don't become "fixed"