Precipitation that does not infiltrate the ground is runoff that may move unchanneled as ________.
A. dissolved load
B. sheetwash
C. a tributary
D. discharge
E. a rill
Answer: B
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The maximum monthly mean temperatures for New York City occur in
A) May. B) June. C) July. D) August. E) September.
Some students on a biology field trip were sitting around watching honeybees. Some of the students noticed that bees spent more time on some flowers than on other flowers. As they talked about this behavior, the students offered various explanations
Some thought that the bees were avoiding predators on some flowers, while other students suggested that some flowers may have sweeter nectar. These speculations about bee behavior are examples of ________. A) data B) bias C) hypotheses D) theories
The International Monetary Fund and the World Bank often prescribe actions that countries must undertake in order to receive loans. This type of behavior by these institutions is interpreted as ________.
A. neocolonialism B. core abuse C. modernization theory D. comparative advantage
Which of the following caused devastating effects on the marine food chain and was banned in the United States in 1972?
A) DDT B) Methyl mercury C) PCBs D) Polycyclic aromatic hydrocarbons E) Sewage sludge