Rank the six regions in the united states from largest to smallest based on the number of states in each region

It's Southeast then Northeast then Northcentral, Rocky Mountains, Southwest, and finally Pacific 

To solve their problems, mesopotamians used irrigation, a way of supplying water to an area of land. to irrigate their land, they dug out large storafe basins to hold water supplies these ditches brought water to the feilds. to protect their feilds from flooding, farmers built up the banks of the tigris and euphrates.hope ths !