What would be the recurrence interval for a flood to reach the top of the new levee?
What will be an ideal response?
+2000 years
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Freshwater is naturally purified, recycled, and distributed in the ____________________.
Fill in the blank(s) with the appropriate word(s).
Which relative dating principle states that fragments included in a host rock are older than the host rock?
a) principle of inclusion b) principle of exclusion c) principle of cross-cutting relationship d) principle of lateral continuity e) principle of superposition
The Neolithic Revolution is most clearly seen in human culture today in our use of
A) natural wood products from national forests. B) furs from trapped wild animals. C) rivers for navigation and water supplies. D) modern agriculture to raise food crops.
What is the underlying geologic explanation for why western South America is so different from eastern South America?
A. The western side marks a plate divergence and the eastern side marks a plate convergence. B. The western side is a plate boundary and the eastern side is not. C. The eastern side is a plate boundary and the western side is not.