Bree dips a pair of prongs onto a water surface to produce waves. When she dips less frequently the resulting waves
A. have longer wavelengths.
B. move slower.
C. have shorter wavelengths.
D. remain the same in wavelength.
Answer: A
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Regions on the rain-shadow (leeward) side of mountains (such as the Rockies and Andes) are generally
A) humid continental. B) tundra. C) semi-arid. D) Mediterranean.
The fact that older fossils are more unlike living organisms implies that old forms of life died out and that new forms of life have developed is known as ________.
A. law of superposition B. law of faunal succession C. law of original horizontality D. law of inclusions
Which of the following locations would experience a slight radiative energy deficit?
A. A B. B C. C D. D
While the U.S. command-and-control environmental regulations initiated in the 1970s have been very effective at reducing pollution, some economists have difficulty with the legislation because
A. it often requires different pollution-control technology for each polluter. B. it usually requires different standards for all current and potential polluters. C. it is full of fine print and exceptions, and costly for some firms to comply with. D. it is not subject to compromises in the political process and all of the above.