Across
- 2. Fastest and most dangerous type of flood.
- 6. If this breaks, floods can occur.
- 8. Tree roots hold this in place, preventing floods.
- 9. Body of water that can overflow and cause floods.
- 10. Overflow of water onto normally dry land.
- 11. Planting trees can help do this to floods.
- 14. Large wave often caused by underwater earthquakes.
- 17. Melting of this can cause floods.
- 19. Floods can even happen here.
- 20. Floods can sweep this off the road.
- 21. Roots of these help soil absorb water.
Down
- 1. Type of flood that develops slowly over days.
- 3. What rivers do during floods.
- 4. Type of flood that develops over a day or two.
- 5. Famous river in Egypt.
- 7. Strong storms over oceans that can lead to flooding.
- 12. Country that relied on Nile River floods.
- 13. Floods can be this, knocking cars off roads.
- 15. Frozen water that can melt and contribute to floods.
- 16. One of the main causes of floods.
- 18. Liquid that covers much of Earth and causes floods.