How would you classify the nature of environmental regulations in China with regard to water pollution?
A. poor
B. excellent
C. very effective
D. a model for the rest of the world
Answer: A
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Weathering processes are primarily responsible for the concentration of what types of ore?
A) gold B) cadmium C) aluminum D) copper
Which of the following statements is not true of the sulfur cycle?
A) Most sulfur is found in rocks and minerals. B) Unlike nitrogen and carbon, organisms do not require or contain sulfur. C) Atmospheric sulfur dioxide is contributed when humans burn fossil fuels. D) A natural source of sulfate in soils is the weathering of rocks.
When seawater evaporates, its sodium and chlorine are electronically attracted to one another and crystallize into ________.
A. clay B. quartz C. calcite D. hematite E. halite
Which site along this stream would have the highest velocity for that segment of the stream?
A. A B. B C. C D. D