Areas such as the San Joaquin Valley and Mexico City have experienced subsidence because ____.
A. of a drought that lasted decades
B. the sediments were all clay
C. groundwater was overpumped
D. of urban growth that made the area sink
E. the main rivers were dammed
Answer: C
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18,000 years ago, huge ice sheets called ____ covered vast areas of North America and Europe
a. ?alpine glaciers b. ?continental glaciers c. ?polar glaciers d. ?landmass glaciers e. ?mountain glaciers
Which of the following cloud types has the greatest height (from top to bottom)?
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Which of the following statements best describes how this object may have formed?
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