| A | B |
|---|
| levee | used to prevent floods |
| irrigation | means of getting water to dry land |
| silt | small particles of rock |
| Tigris and Euphrates Rivers | name the two rivers of Mesopotamia |
| Mesopotamia | "land between the rivers" |
| city-state | a city that acts more like an independent country with its own ruler and government |
| Sumer | area of lower Mesopotamia where cities first appeared |
| Iraq | modern day country that Sumer lies in today |
| walls | because Sumer did not have natural defenses what did they build? |
| unreliable | one word to describe the water supply of Sumer because it was either too little or too much |
| Zagros Mountains | mountain range that the people of Neolithic times began farming in |
| sun dried bricks | What did Sumerians build with? |
| population | the increase of this caused a shortage of food in the foothills |
