Question

The Paleoindian Period of the Plateau is __________.
a. well-understood through the work of Russian ethnographers in the 18th c.
b. non-existent because the region was covered by glaciers
c. poorly-understood because volcanic activity and flooding has erased much of the archaeological record
d. well-understood through the journals of Lewis and Clark

Answer

This answer is hidden. It contains 3 characters.