Across
- 6. The first crop.
- 7. In Africa, where does the human species begin?
- 8. The most complex structure in the universe.
- 9. The most important development of the early Stone Age.
- 11. Another name for the new stone age.
- 12. A community of people who share a culture.
- 13. A sequence of events.
Down
- 1. Another word for farming is...
- 2. The study of layers of the earth.
- 3. This process made plants and animals useful for humans.
- 4. People who hunt and gather plants.
- 5. The idea of people with special skills and abilities.
- 10. This was a negative consequence of farming.