They suck cack.. So much cack that they can't breate.. If this answer was helpful then please add a new one for the sake of my grade...
Answer:
Three of the top reasons are because of jobs, education and lifestyle
Explanation:
Answer:
Sumer was responsible for many inventions and important contributions to inventions of both the time and today. However, Sumerian city-states often fought with each other. They went to war for glory and more territory. This power - hungry people build walls to protect from invading armies looking to loot, pillage, and grow wealthy. The walls surrounded each city - state, closing them off from the rest of Mesopotamia. This lead to isolation, and more war. The city - states were constantly in a state of unrest.
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