Why did prehistoric peoples stay at beringia for so long?
a. they were unable to move past the glaciers.
b. they enjoyed the tropical environment.
c. they were kept in beringia as punishment.
d. they had to finish building giant monuments.

for the united states of america, 1945 to 1964 was a time of high economic growth and general prosperity. it was also a time of confrontation as the capitalist united states and its allies politically opposed the soviet union and other communist countries; the cold war had begun.

explanation:

north atlantic treaty organization.