The amount of ground water is ________ that of all rivers and lakes combined.

A. very minor when compared to
B. equal to
C. many times
D. of uncertain amount compared to
E. a little less than


Answer: C

Environmental & Atmospheric Sciences

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Transverse currents can flow eastward or westward

Indicate whether the statement is true or false

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If the resilience of a damaged ecosystem is low enough, the degraded area may not be restored by secondary succession. When this happens, the damaged ecosystem has reached ____.

A. stability B. inertia C. constancy D. a tipping point E. resilience

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Which of the following is the primary mechanism that causes barrier islands to retreat (migrate) toward the shoreline?

A. storm overwash B. beach drift C. longshore currents D. rip currents E. tides

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Compare and contrast the differences in effective dating ranges for the various radiometric

dating techniques discussed in the textbook. Why do these differences occur and how can they be used to more precisely constrain absolute dates of geologic materials? What will be an ideal response?

Environmental & Atmospheric Sciences