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.
Answer:
A national government is the government, or political authority, that controls a nation. At minimum, a national government requires a national army, enough power over its states or provinces to set and maintain foreign policy, and the ability to collect taxes.
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D: The conquests brought great power and wealth to the Romans.
