20. One factor which led to the changes described in the passage was A) decreasing natural resources in North America, which led to an increasingly migratory
culture.
B) decreased warfare in the northwest among native tribes.
C) decreasing social diversification resulting from maize cultivation.
D) the introduction of African slaves into the Americas.

the united states began searching for a way to reduce oil

-agarvated

sharing a small living space with family

members. during the industrial revolution, people from the countryside came to

cities in multitudes looking for greener pastures by obtaining jobs in

factories. for this reason, the family members had to live together in small

space

what are the following?

explanation: