It is clear that a critical assumption behind the concentric zone model of a city is that it has an isotropic surface, meaning that the model city
A) is flat, uniform and barrier free.
B) does not have motorized transportation.
C) only has streets that are parallel and perpendicular to each other.
D) has high buildings in the center which get lower with distance outward.
E) is located on a slope, like a mountain side.
Answer: A
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Vertical mixing of air tends to __________ a large environmental lapse rate
a. decrease b. increase
Some beetles escape from a ship and fly to a small island covered with grass but with no trees or beetle predators. As the beetles feed, they destroy all the grasses. But with abundant food, the beetle population soars, doubling in size every month
After about a year, the population crashes as thousands of beetles have destroyed almost all of the plants and there is little left to feed the large population. This scenario best illustrates A) constant growth followed by equilibrium. B) a population that has stabilized near its carrying capacity. C) exponential growth followed by a population crash. D) the fact that the beetles have strong competition from other species for food supply.
A sediment deposit close to the continental rise having a coarse material overlaid by successively finer materials of nonmarine origin is called a ________.
A. rafted deposit B. hydrogenic deposit C. turbidite D. well-sorted deposit E. pelagic deposit
An environmental scientist is least likely to be involved with which of the following?
A) studying X-ray emissions for evidence of black holes B) launching NASA satellites that monitor changes in carbon dioxide production on Earth C) studying the relationship between soil fungi and aspen trees in areas that are being restored after oil sand mining D) helping a rancher determine the best ways to rotate herds of cattle to reduce erosion E) determining the best fuel to generate electricity for a growing city in Arizona