Answer:
Ethnic groups share a common <u>characteristic</u> while religious groups share a common <u>belief</u>.
The greeks are surrounded by sea, making it easier for them to built fort-based city. This type of city organization of course couldn't be done by the persians that's surrounded by desert. Hope This Helps!
The term "representative government" refers to a system in which larger groups are represented in government bodies by one person or a small group of people. The term is commonly used to describe a representative democracy or an indirect democracy.
