From which source does the city of Las Vegas, Nevada get most of its water?
A. Colorado River
B. high mountain lakes
C. groundwater
D. collection systems on roofs
Answer: A
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Which of the following is one consequence of severe soil erosion?
A. reduction in food production B. increased nutrients in local streams C. plants are able to access the deep nutrients more successfully D. increase in food production
Generally speaking, fertility rates tend to be lower in rural areas of the world than in urban areas
Indicate whether the statement is true or false.
What is the natural growth rate in Europe?
A) extensive population decline in every country B) uniformly negative rate of growth C) very slow rate of growth D) moderate rate of growth E) extremely high rate of growth
As far back as 1620, Sir Francis Bacon commented on the similarity of the shorelines of western ____________________ and eastern ____________________
Fill in the blank(s) with correct word