The North American Cordillera formed as a result of ________
A) the growth of the Appalachian Mountains
B) the subduction of the Pacific basin beneath North America
C) the evolution of the San Andreas Fault zone
D) the subduction of the Atlantic basin beneath North America
B
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How are the principles of lateral continuity and superposition related?
A) They help to understand the processes that obstructs sedimentary layers. B) They help to extend relative age relationships over larger areas. C) They help to understand cross-cutting relationships. D) They help to show that sediment tends to accumulate in horizontal layers.
Global dimming is the general term used to describe decreased insolation during periods of less solar activity
Indicate whether the statement is true or false
Which of the following is NOT supporting evidence of plate tectonics?
A) The "jigsaw puzzle" shape of the continents. B) Lack of oceanic ridges that would indicate sea floor spreading. C) The fossil and climatic record. D) Similar rock assemblages on the east coast of South America and West Coast of Africa.
In what year did Köppen first publish his classification system?
A) 1492 B) 1760 C) 1850 D) 1918 E) 1971