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