Thick clouds strongly reflect solar radiation. This
A) promotes warming.
B) promotes cooling.
C) is a strong positive feedback.
D) is not a feedback mechanism.
Answer: B
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To view yourself in a steamy mirror, wipe just enough moisture away to barely see a full view of your face. If you move back from the mirror, you'll see
A. a bit less of your face. B. a bit more of your face. C. the same amount of your face. D. this tricky question has no answer
Which of the following creates a major problem for scientists studying a particular cycle of glaciation?
a. subsequent glaciation b. changes in sea level c. human activity d. changes in wind direction
Is the rain generally moving toward Raleigh or away?
The question is based on Figures 21-1, 21-2, 21-3, and 21-4, radar images of Raleigh, North Carolina, on November 7, 2006. The Doppler radar site in Raleigh is in the center of the image; north is to the top of each radar image. Full-color versions of these figures may be viewed on the Hess Physical Geography Laboratory Manual, 12th edition, website at www .MasteringGeography. com, then select Exercise 21, or by scanning the QR (Quick Response) code for this exercise. What will be an ideal response?
Long residence times are generally associated with elements that are considered to be nonconservative constituents
a. True b. False