Across
- 2. remove earth to find what is below
- 3. movement of fresh air in and out
- 4. farm animals
- 5. cruel, too strong
- 7. remove the surface of rocks (by water or wind)
- 10. the study of rocks
- 11. sand, mud, etc. at the bottom of a sea or river
- 12. large, raised, flat area of land
- 13. long, deep hole in the ground to allow soldiers to be protected from the enemy
Down
- 1. person who studies objects found in the ground to learn about history
- 3. from volcanoes (mountains with holes that can release hot liquid rocks and gases)
- 6. person who searches for gold, oil or other minerals
- 8. home
- 9. under the ground