The water table _____
a. can always be found 10 feet below the surface
b. fluctuates with the quantity of recent precipitation, loss by outflow to the surface, and the amount of removal by pumping
c. occurs at varying depths from place to place, but does not change over time
d. only exists in open spaces like caverns
e. always occurs at elevations lower than stream or lake levels
b
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Streamflow is fastest ____
A)at the bottom of the channel B)at the surface of the water C)along the sides of the channel D)at the center of the channel, just below the surface E)at the center of the channel, at the surface
Which environment would be likely to produce a black shale?
A) Shallow marine bay B) Swamp C) Forest D) Eolian dunes
Agribusiness is extremely capital-intensive and energy-intensive. Thus, agribusiness has all of the following characteristics EXCEPT
A) it relies on huge amounts of chemicals. B) most of it is computer-controlled. C) it is very labor-intensive. D) just 2% of the U.S. labor force is engaged in agriculture. E) it is extremely highly productive.
Plants that have developed mechanisms to combat drought are known as:
a. driophytes. b. xerophytes. c. trilobytes. d. trogolodytes.