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How do rip currents form, and what should you do if you are caught in one?
Q15: The process of placing geologic events in
Q25: In the Early Cambrian, there was a
Q26: What do unconformities represent?
Q32: Which pair of scientists is credited with
Q43: Narrow surface currents that flow in the
Q44: Why is correlation needed to construct a
Q62: Which of the major rock types were
Q63: The boundary between the Tippecanoe and Sauk
Q82: Waves are oscillations of the water surface.
Q86: The ultimate base level for a stream