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: One has a king in where the other has just a ruler
Im learning this right now and I think its either a or c. Sorry if im wrong
<span>President Roosevelt's key environmental preservation measures were not strictly tied to programs and laws. Its fundamental role was in the field of land protection and expansion of federal reserves.
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