Based on the differences in terminal and line-haul costs, which form of transportation is preferred over short distances?
A) trucks
B) air
C) water
D) rail
E) There is no difference.
A
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Which of the following statements explains why hurricanes cannot form along the equator?
A. The Coriolis force is too small along the equator. B. There are no feedback mechanisms along the equator. C. It's too humid for the ocean water to evaporate. D. There isn't much water along the equator; it's mostly land.
Sketch the current river course.
The following questions are based on Map T-4, a portion of the “Voltaire, North Dakota” quadrangle (scale 1:24,000; contour interval 5 feet) and Figure 40-4, a stereogram of the same region showing the Souris River (48°06'23"N, 100°48'05"W). What will be an ideal response?
Alternative energy sources
A. are all renewable (except for nuclear energy). B. are sources of electricity and heat that emit little or no carbon dioxide. C. include solar, geothermal, biomass, and nuclear. D. All of these
In a deep fjord with a shallow entrance sill, the deep-basin water is probably ________.
A. high in salinity and low in nutrients B. low in salinity and high in oxygen C. high in oxygen and low in nutrients D. low in oxygen and high in nutrients E. high in salinity and high in oxygen