Across
- 4. to keep, protect and save
- 7. a land surrounded by water
- 8. when soil and rocks are moved by water to other place
- 9. a low land between mountains
- 10. top layer of the earth
Down
- 1. a body of water surrounded by land
- 2. made from tree
- 3. the highest form of land
- 5. seven largest island on earth
- 6. harful things in the air, water and land