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