Across
- 5. solid nonliving substance found in nature
- 6. soil is a part of this sphere
- 8. cutting down trees
- 9. volcano that has not erupted for some time, but may erupt in the futre
- 10. soil with thin layer of topsoil with little humus
- 11. loose rocks fall down and causes this
Down
- 1. heavy mud slide down a slope
- 2. volcano that will not erupt again
- 3. volcano that is currently erupting
- 4. sandy and doesn't have much humus but rich in minerals
- 6. causes rocks to fall down a slope
- 7. dark, organic material that forms in soil