Natural and Man-made disasters

8. a large amount of snow that quickly moves down a slope.
9. The contamination of the environment with radioactive materials, where these materials are not present.
11. a rise of water with no place to go.
13. no rain for a long period of time.
14. harmful or poisonous things that people put into the environment.
15. a hole that forms in the ground when the dirt and rocks wash away and there is nothing underneath the ground anymore to support it.

1. a sudden violent shaking of the ground, typically causing great destruction.
2. the clearing, or cutting down, of forests.
3. giant waves caused by earthquakes or volcanic eruptions under the sea.
4. a large rotating storm with high speed winds that forms over warm waters in tropical areas.
5. when lava and gas are released from a volcano—sometimes explosively.
6. when waste, chemicals, or other particles cause a body of water to became harmful to the fish and animals that need the water to survive.
7. is a type of storm in which powerful rotating winds form a column, which reaches from a cloud down toward the ground.
10. large uncontrolled fires that take place in the forest.
12. a collapse of a mass of earth or rock from a mountain or cliff.