Across
- 2. The time period that started after the invention of agriculture
- 5. The exchange of goods and knowledge between communities
- 6. A word describing land that is good for growing plants
- 7. The study of Earth's features and humans' relationship to their environment
- 10. The hominin species best known for having large brains and living in communities
- 11. One of the rivers surrounding Mesopotamia
Down
- 1. Farming and domesticating animals
- 3. How people in the Paleolithic Age got food
- 4. The land in between the Tigris and Euphrates Rivers
- 8. The hominin species best known for making tools
- 9. A system that controls the supply of water