Tile drainage systems and city storm sewers
A. reduce flooding where they are installed but may increase it along a stream into which the discharge flows.
B. reduce flood hazards by removing water quickly.
C. increase flood hazards by preventing infiltration.
D. have no effect on flood hazards; they do not drain into streams.
Answer: A
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Magma that solidifies before reaching Earth's surface is called
A. plutonic rock. B. a pluton. C. intrusive igneous rock. D. all of the above
What is the Coriolis effect? What impact does it have on global circulation? Be specific
Limits on mountaintop removal mining were removed by the Bush administration in the late 1990s when
A) regulations on the use of coal in power plants were lifted, increasing the demand for coal. B) large regions of national forest were reclassified as national reserves, permitting coal mining. C) the mountain top debris was reclassified from waste to fill, allowing it to be dumped into valleys. D) laws changed, permitting the relocation of people and homes in the surrounding regions.
What would probably happen to the small piece of continent that was offshore (in the middle of the ocean)?
A. It will be carried toward and collide with the continent. B. It will be carried farther out to sea by seafloor spreading. C. There was no small piece of continent offshore in the ocean. D. It will be rifted in two, forming a new ocean basin.