Sediments that are gray in color tend to be ____
a. biological in origin
b. oxidized
c. high in iron
d. high in silica
e. high in manganese
d
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Companies using resources to provide goods for consumers
A. are not generally required to pay for the harmful environmental costs of supplying the goods. B. are usually required to pay for the harmful environmental costs of supplying the goods. C. almost always clean up any pollution from their business operations. D. pass on the cost of environmental degradation to consumers. E. must report their environmental degradation.
According to Knox and Marston, the "short 20th century"—a period of fairly coherent economic and political development—occurred between World War I and the
A) Great Depression. B) start of World War II. C) collapse of the Soviet Union. D) invention of the Internet. E) world-side emergence of performance-enhancing drugs among athletes.
Distinguish between active and passive continental margins
Ice lens formation and frost heave is most common in:
a. clayey soils b. silty soils c. sandy soils d. sandy and gravelly soil