Across
- 4. harsh shaking ground opening
- 6. biomes
- 7. wear away or change
- 8. matter that settles to the bottom of liquid
Down
- 1. a mountain or hill,typically conical, having a crater
- 2. the action of depositing something
- 3. tectonic plates scraping against each other causing breaks
- 5. the process of eroded or being eroded by wind, water, or other nautral agants
- 9. the fourth letter of the Greek alphabet translated as 'triangle'
- 10. red liquid in the ground that is very hot