Four major agricultural societies emerged between 4000 and 2400 B.C. These were located in the areas of the Tigris and Euphrates rivers in Mesopotamia, the Nile River in Egypt, the Indus River in India, and the Huang He, or Yellow River, in China.
If you want help, in the future be more specific and post the article and real question because most of us who want to help you aren't in you class. Just a little not for the future <3 Good luck in school!
