The Appalachian Mountains formed as a result of ________
A) the initial formation of Pangaea
B) the collision of Greenland and Norway
C) the collision of North America and Africa
D) the collision of North America and Europe
E) the break-up of Pangaea
C
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The orogenic event of the North American Cordillera, which began in the Late Cretaceous and extended into the
Cenozoic, is the ____. a. Laramide b. Sevier c. Nevadan d. Antler e. Caledonian
Which of the following is a common setting for a spring?
A. a permeable upper layer with a water table deep below the surface B. a limestone aquifer that intersects the surface C. an unconfined aquifer with a water table deep below the surface D. a nonpermeable upper layer with a water table deep below the surface
The subarctic climate is often referred to as ________
A) frozen land B) steppes C) the polar express D) the taiga climate E) tundra
Which weather model would provide the best accuracy/precision but the greatest cost in terms of computer time?
A. larger spatial resolution, shorter time steps B. larger spatial resolution, longer time steps C. finer spatial resolution, shorter time steps D. finer spatial resolution, longer time steps