When two continents converge, ________
A) a volcanic arc forms on the upper plate
B) the sediments trapped between them are pushed up and deformed to make a mountain range
C) the lighter continent is subducted
D) the heavier continent is subducted
B
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Rocks on the east coast of South America match rocks on the west coast of North America.
a. true b. false
Sea floor spreading along the axis of an oceanic ridge results in symmetrical patterns of all of the following EXCEPT ______________.
a) the age of the sea floor b) the depth of the sea floor c) the paleomagnetic record d) the flow of heat through the crust e) the location of subduction zones
According to Wien's Law, which of the following would have a peak energy emission at the longest wavelengths?
A) an automobile engine that has been running for an hour B) the illuminated headlights of an automobile C) the Sun D) a rock on an open plain on a hot day E) the Earth as a whole
For the 1972-1980 period, the percentage of chaparral acreage burned in the United States and in Mexico was about the same, despite enormous efforts made in the United States to suppress fire.
Answer the following statement true (T) or false (F)