Across
- 6. are collisions between astronomical objects
- 7. any large-scale movement of a mass of debris or rock down a slope
- 9. a giant wave caused by the movement of earth under
- 10. is a prolonged period of exceptionally high temperatures
Down
- 1. is an extended period of time drier than normal conditions
- 2. a big mountain that contains lava
- 3. occurs after heavy rainfall
- 4. when water accumulates and results in a surge of water-saturated rock, earth, and debris
- 5. a mass of ice and snow falling rapidly down a mountainside
- 8. the ground shaking and buildings collapsing