Across
- 4. When the movement of cold and warm air currents creates extreme air pressure diff erence.
- 5. From vibrations caused by earthquakes.
- 7. When there is heavy rain or when a river bursts its
- 9. By underwater volcanic eruptions.
Down
- 1. When the sun’s heat and lightning strikes.
- 2. The movements of the plates in the Earth’s crust.
- 3. By high ocean temperatures, broad-scale wind systems.
- 6. Changes in the global climate.
- 8. and the water spills out onto the floodplain.