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:
<span>According to one school of thought, Eriksson sailed off course on his way back to Greenland and landed on the North American continent, where he explored a region he called Vinland. He may also have sought out Vinland based on stories of an earlier voyage by an Icelandic trader.</span>
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Answer:
Market research tells producers what consumers
want and what they're willing to pay
Explanation: