| A | B |
|---|
| Fertile Crescent | a large arc of rich, or fertile farmland |
| silt | a mixture of rich soil and tiny rocks |
| irrigation | a way of supplying water to an area of land |
| canals | human- made waterways |
| surplus | more than they needed |
| division of labor | when a worker specializes in a particular task or job |
| Mesopotamia | land between rivers |
| Tigris and Euphrates River | The river that surround Mesopotamia |
| Middle East | area where the Fertile Crescent is located |
| Southwest Asia | area where the Neolithic Revolution began |
