Which of the following slopes would be at greatest risk for mass wasting?
A. 20° slope
B. 30° slope
C. 10° slope
Answer: B
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A 340-Hz sound wave travels at 340 m/s in air with a wavelength of
A. 10 m. B. more than 100 m. C. 1 m. D. 100 m.
An example of white flight is the
A) movement of whites from northern cities like Chicago and New York to southern cities. B) movement of whites from southern cities like New Orleans to western cities like Los Angeles. C) establishment of suburbs around Los Angeles. D) decrease in the percent of whites remaining in the Southeast because of black migration from the Southeast. E) emigration of whites from central Los Angeles as blacks were arriving.
Which sequence best describe thunder formation?
A. cooling, expansion, air filling the vacuum B. cooling, contraction, air filling the vacuum C. heating, expansion, air filling the vacuum D. heating, contraction, air filling the vacuum
The Appalachian Mountains were formed when the North American continent collided with Africa to form the supercontinent Pangaea over 250 million years ago. What kind of tectonic boundary existed here?
What sort of structural features would you expect to find in this region? What will be an ideal response?