Which of the following terms refers to the amount of pressure change that occurs over a given horizontal distance?
A. pressure tendency
B. pressure gradient
C. Coriolis parameter
D. potential gradient
Answer: B
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What factor has been most crucial to the survival of the relatively few remaining indigenous people of Latin America?
A) water B) land C) energy D) jobs E) education
Briefly explain how the phylogeny of an extinct group can be determined
Which of the following is not true of hard water?
A) It increases the permeability of rocks. B) It may add toxic metals to drinking water. C) It may clog pipes. D) It decreases the effectiveness of soaps.
The subpolar low (polar front) is:
A) the boundary between frozen and liquid ocean. B) a zone where the trade winds of the two hemispheres meet. C) a zone where the polar easterlies and the westerlies converge. D) the forward edge of the antarctic ice cap.