Across
- 4. A large barrier to hold back water
- 5. The weathering erosion caused by moving nasses
- 7. Strong winds that travel west to east
- 8. A forest that became more common
- 10. A change from an agricultural society
- 12. A visit to lands that were very important to history
- 13. A process
- 15. Water filled valleys
Down
- 1. A region where subsoil is frozen
- 2. Ages The medieval age
- 3. An economy that is based on providing services
- 6. Land that is reclaimed from building dikes
- 9. A system
- 11. A forest that has trees like oak,maple,beech,and chestnut
- 14. Where a part of the sea connects