The city-states of ancient Mesopotamia were independent cities constructed around temples and entirely self-contained within mighty perimeter walls.<span> City-states were unified with each other only by their shared use of the Sumerian language. They spent most of their time engaged in conflict over resources.</span>
A is the correct answer.
They were formed to coordinate the interests of producing countries by regulating oil prices.
<span>The Red Sea the Persian Gulf, the Gulf of Oman, the Gulf of Aden, and the Arabian Sea. I believe this is the right answer!</span>
The answer is: [C]: Alaska, Texas, Montana, and Idaho .
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