Question

Imbrication is a process that results in:
a. An extremely well-preserved archaeological record that directly reflects human behavior.
b. Clay-rich soils pushing artifacts upward as the sediment swells and then moves them down as cracks form during dry cycles.
c. Stones in a riverbed lying with their upstream ends slightly higher than their downstream ends.
d. Stones in a riverbed lying with their upstream ends slightly lower than their downstream ends.

Answer

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