The Department of Energy is investing $60 billion in rural parts of the United States, largely in the Great Plains, in order to develop what alternative source of energy?
A) Biofuels
B) Solar power
C) Wind
D) Hydroelectric
C
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Longshore currents and beach drift ________.
A) move in opposite directions B) both have net movement that is parallel to the shore C) are oriented at 90° to each other D) are found only in deep water, and never close to the shore
About how much more abundant is thorium compared to uranium within Earth's crust?
A. Thorium is about four times as abundant as uranium. B. Thorium is about sixteen times as abundant as uranium. C. Uranium is actually more abundant than thorium, but less stable. D. Their abundance is about the same, though thorium is more easily extracted.
The potato is native to Europe
Indicate whether the statement is true or false.
Thermohaline circulation
A) is driven in part by differences in salinity. B) is independent of temperature. C) has no substantiated association with climate change. D) responds rapidly to changes in atmospheric temperature.