Across
- 3. use of water for farming
- 4. what heiroglypics was written on
- 6. centers of trade
- 7. yellow silt in china
- 8. series of ruler
- 10. river in egypt
- 11. natural barrier in China and India
- 13. river in mesopotamia
Down
- 1. writing for mesopotamia
- 2. taming of animals
- 5. invented in india
- 8. natural barrier in Egypt
- 9. fertile black mud
- 12. people who move from place to place