Across
- 1. an early city that was like a small independent country with its own laws and government
- 3. an area in southern Mesopotamia before cities first appeared
- 5. a means of supplying land with water
- 7. one of the largest rivers in southwest Asia that flows from the mountains in Turkey to the Persian Gulf
- 8. fine particles of rock carried by a river
Down
- 2. One of the largest rivers in southwest Asia that flows from the mountains in Turkey to the Persian Gulf
- 4. in ancient times, the geographic area located between the Tigris and Euphrates Rivers
- 6. a wall of earth built to prevent a river from flooding its banks