Across
- 3. a narrow valley
- 6. becoming skilled in one specific area of work
- 8. a group of mountains
- 10. a process that moves weathered rocks
- 11. a big stripe in earths surface
- 13. how quickly or slowly erosion occurs
- 14. taming of plants and animals for human use
Down
- 1. the slow shift from hunting-gathering to farming
- 2. wind water ice or gravity
- 4. the practice of farming and raising animals for food.
- 5. weathered rock that is carried away by wind water ice or gravity
- 7. a unique important part
- 9. a prehistoric period during which humans began to farm and domesticate animals
- 12. a process in which a force acts on a rock and breaks it into smaller pieces