Across
- 1. the fact of something such as a bomb exploding
- 2. an extremely large wave caused by a violent movement of the earth under the sea
- 5. a large amount of ice, snow, and rock falling quickly down the side of a mountain
- 7. a mass of rock and earth moving suddenly and quickly down a steep slope
Down
- 1. a sudden violent movement of the earth's surface, sometimes causing great damage
- 3. ... crash
- 4. relating to the environment
- 6. to cause to fill or become covered with water, especially in a way that causes problems