What is a possible consequence of overpumping of groundwater?
A. along the coast, pulling saltwater into wells that were previously fresh
B. inflation of the aquifer due to an increase in porosity
C. flooding due to rising groundwater levels
D. All of these.
Answer: A
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Converging plate boundaries are often sites of metamorphism and igneous activity
a. True b. False
Over the past 60 years, the number of sovereign state memberships in the United Nations
A) has remained approximately the same. B) has increased by 30 countries. C) has decreased by 30 countries. D) has increased by more than 50 countries. E) has increased by more than 100 countries.
Which of the following is NOT a concept of volunteered geographic activity?
A) Citizens as sensors B) Crisis mapping C) Reporting sightings of animals and plants D) Participation in NASA's astronaut program E) Reporting weather at your house
The world's population is now more than
A. 20 million B. 700 million C. 70 billion D. 7 billion E. 70 million