Across
- 2. ____________ can last for decades.
- 4. ____________ rumble the ground.
- 6. ____________release carbon dioxide.
- 8. _____________ are fast flowing rivers of mud.
- 9. ____________ can form over the ocean.
- 12. ___________ can burn down forests.
- 15. ____________ can be caused by earthquakes.
Down
- 1. ____________ produce smoke.
- 3. ____________ produce lots of snow.
- 5. ____________ are very large.
- 7. A ____________ is a giant wave.
- 10. ____________ can sweep objects into the air.
- 11. ____________ produces thunder.
- 13. ____________ are cause by heavy rains.
- 14. Some ____________ can be up to 30 meters deep!