It promoted it because now they wanted to fight for there county and supported it
I believe one of them is the Gettysburg Address
All of the above would be important factors .
Explanation:
The land was much more fertile, which made it perfect for farming. The disadvantages of living in Sumer were: The two rivers would sometimes overflow. Because of the excess water sometimes very many crops would not grow. I hope that helps.
Answer:
pretty sure it's b. if it's not, forever shame me.
