The coarse material that gathers at the foot of the slope which results in rockfalls is called
A. detritus.
B. talus.
C. debris.
D. clastic.
Answer: B
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Gradational boundaries between different sedimentary rock types can form from
A. a progressive change from one environment to another. B. slowing of the current over time. C. a gradual rise or fall in sea level. D. All of these choices are correct.
Problems associated with the construction of the Three Gorges Dam include all the following, EXCEPT
A) the displacement of more than one million people. B) the diversion of two other major rivers to fill the Three Gorges reservoir. C) the flooding of a major scenic attraction. D) the jeopardizing of several endangered species. E) building what is the largest hydroelectric dam in the world.
Hong Kong Chinese that maintain residences and businesses in Hong Kong and Vancouver, and Turks that work in Germany while maintaining close connections and property in Turkey, are specifically known as
A) voluntary migrants. B) voluntary emigrants. C) international emigrants. D) transnational migrants. E) guest workers.
All of the following are approaches to reducing eutrophication except ________
A) planting and maintaining vegetation buffers around ditches and streams that trap nutrient and sediment runoff B) upgrading stormwater systems to capture runoff from roads and parking lots C) applying fertilizers to farmland just before heavy rains are predicted D) using artificial wetlands to filter stormwater and farm runoff E) reducing fertilizer use on farms and lawns