Across
- 1. usedas a growing medium
- 3. spliting along a smooth flat planes
- 6. an opening in the earthscrust
- 9. meltedrock formedundereaths crust
Down
- 2. undergone by heat or pressure
- 4. the process of eroding
- 5. a natural material
- 7. the building block of minerals
- 8. aftile soil of clay