Across
- 3. species that affect each other's evolution
- 4. plates that slide past each other
- 6. living organisms
- 8. map with features of the land
- 9. the time required for half of something to undergo a process
- 10. forces that destroy Earth's features
Down
- 1. transfer of heat through heated fluids
- 2. boundary plates that collide
- 5. dating used on non-living materials
- 7. theory on how plates move