Answer:
In a group of city-states, each city-state is independent and rules by its own king. No central power controlled all of the city-states. In an empire, consisting of a nation and the city-states and nations it has conquered, one ruler is in control.
Explanation:
For Economic reasons. Areas farther out areas had land that was poor for farming.
Answer:Self-interest
Explanation:
Self-interest refers to pursuing our own needs and desires. We usually engage in these types of behavior without knowing that we have done so.
Self interest motivates us to act because we yearn for self benefits.
Usually students get into political organization in order to influence government towards paying financial aids for those student who are needs sometimes including themselves. When they are engaged in politics they want their voice to be heard by the government to state their needs and expectations.