What is the main force involved in the stability of slopes?
A. sunlight
B. water pressure
C. gravity
D. radioactivity decay
E. wind
Answer: C
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Compared to the speed of light in air, the average speed in glass is
A. the same. B. greater. C. less. D. dependent on its brightness.
Hurricane paths (tracks)
A) are highly smooth and stable. B) are easily predictable. C) always move to the northwest. D) can be highly erratic.
Population distribution describes ________
A) placement of a species around the globe B) placement of a species within a country's boundaries C) how near or far away individuals in a population are from a resource, such as water D) spatial arrangement of multiple species within a particular area E) spatial arrangement of individuals of a single species within a particular area or ecosystem
Brazil's ________ was the major destination for Portuguese slave ships
A) Northeast B) West C) East D) Central region E) South