Is the Earth in danger?

Complete the sentences:

1. … is a slide of a large snow or rock mass down a mountainside.

2. … is the result of prolonged rainfall from a storm or rapid melting of snow.

3. … is a severe winter storm condition characterized by low temperatures, strong winds and heavy blowing snow.

4. … is a wave of water caused by undersea earthquake or by meteorological phenomena.

5. … is a disaster closely related to an avalanche. It can be caused by an earthquake or a volcanic eruption.

6. … is a phenomenon that shows itself by a shaking of the ground.

7. … are rain drops that have formed together into ice.

8. … is a violent, rotating column of air resulting from a thunderstorm.

9. … is defined as an acute shortage of water and crop failure.

10. … is a hazard characterized by heat which is considered extreme and unusual in the area in which it occurs.

11. … is an uncontrolled fire burning in wild areas.

12. … leads to changes in local climate.