Natural Disasters

1. a structure which blocks a river and can control the river's flowing.
4. an overflowing of water in a normally dry area.
6. a weak area of earth's crust suddenly caves in.
9. very large ocean wave caused by an underwater earthquake, volcano, meteoroid, or landslide.
12. a huge amount of snow on a mountain breaks lose.
14. a pile of rocks or concrete put in the water to slow a tsunami.
16. a tall structure of sand, dirt, or concrete built near a shore where tsunamis are common.

2. a piece of rock from outer space that hits earth, making shockwaves.
3. a raised area of ground or a wall built to hold back rising riverwater.
5. long period of scarce rainfall or dry weather.
7. when earth’s crust slips, and the movement produces violent shaking
8. a cleared path with no plants that can stop a forest fire.
10. Eruptions- when hot magma bursts from the earth's core through the crust.
11. digging a hole to get groundwater when water is scarce.
13. a long period of higher than normal temperatures.
15. fire that burns a large amount of land without human control.