Suppose you are an archaeologist trying to answer this question: When did the first people migrate to North America?
Why might the answer to this question change over time? What do you think? Check all of the boxes that
apply.
O
Scientists might find new sites with human artifacts, thus providing new
evidence.
Scientist might develop new technology that helps them assign different ages
to existing artifacts.
Scientists might come up with new theories using existing evidence.
Scientists might learn more about the conditions in the world in which
prehistoric humans lived.