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.

d

step-by-step explanation:

look at the x and y axis

barack obama

44th president of the united states

during world war ii, the united states officially had no propaganda, but the roosevelt government used means to circumvent this official line. one such propaganda tool was the publicly owned but government-funded writers' war board (wwb).

explanation:

naturalization is the process of gaining united states citizenship. becoming an american citizen is the ultimate goal for many immigrants, but very few people are aware that the requirements for naturalization have been over 200 years in the making.