Limitations on the use of surface water as a water source include
A. past use of some lakes and streams for dumping wastewater.
B. seasonality of stream flow.
C. basic lack of surface water in some regions.
D. All of the choices are correct.
Answer: D
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Complete removal of the forest canopy is ________
A) uneven aged management B) selective harvesting C) rationing D) forest rotation E) clear-cutting
In the geopolitical sphere, a balance of power is
A) a condition of roughly equal strength between opposing sides, as if they were two equally matched camps. B) always bipolar but reinforced by satellite states. C) a condition of unequal strength between opposing sides, as if they were two powerful allies, supported by a range of satellite states. D) exemplified by a League of Nations or, in the post-World War II era, the United Nations. E) the type of power shared by the members of the North Atlantic Treaty Organization.
Analyze the table below that shows USGS data for earthquake zones in Alaska and use it to answer this question. 
What is the trend when comparing slip rate to estimated magnitude?
A. The larger the slip rate the larger the estimated magnitude. B. The larger the slip rate the smaller the estimated magnitude. C. There is no obvious slip-magnitude relationship.
Knowledge-based resources include the quantity, skill, educational level, productivity, and cost of labor
Indicate whether the statement is true or false