Squall lines
A) happen along the boundary of stable air.
B) are most frequently found ahead of extratropical cyclone warm fronts.
C) have updrafts that are perpendicular to the ground.
D) need divergence aloft.
E) are not associated with shelf clouds.
D
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Looking at Figure 9.1.1, which of the following countries has the highest HDI?
A) India B) China C) Saudi Arabia D) South Africa E) Madagascar
What was a key point demonstrated by photographs in the textbook from before and after hurricanes?
A. Most houses were buried beneath sand brought in by strong waves. B. Waves and storm surge caused erosion of beaches and destruction of houses. C. Most houses were protected by the beach sediment. D. Neighborhoods were flooded, but the houses and shorelines were unchanged.
For light, a red shift indicates the light source moves
A) toward you. B) away from you. C) at right angles to you. D) actually, all of the above E) none of the above
The application of the precautionary principle to a commercial fishery whose primary catch species is in decline would result in
A) many years in which no fish are harvested at all. B) an optimal population size that is just about the maximum sustainable yield. C) a total allowable catch above the best estimate of the maximum sustainable yield. D) a total allowable catch below the best estimate of the maximum sustainable yield.