the right answer A. farming improved because Native Americans had horses to help plow two fields
Manifest Destiny is the belief that America was willed to occupy from the Atlantic coast to the Pacific coast, so the answer is A.
Social Psychology is the systematic study of the ways interaction, interdependence and influence among persons affect their behavior and thoughts.
Industrial Psychology is a branch of psychology which understands individuals at their workplace and how the theoretical principles of psychology can be applied.
Anthropology is the scientific study of man and his proceedings.
Sociology is the scientific study of social behavior or society.
Slaves from africa where brought to the americas to mine and work in farms
The Iroquois : formed a confederation that may have inspired the U.S. constitution.
The Powhatan: helped the first settlers from Europe survive.
The Iroquois:gave women a voice in choosing tribal representatives.
I hope it helps!