1. Levees, Dams, and other technology

2. Earthquakes A Seismologist is a scientist who studies earthquakes
How does the work of a seismologist help prevent earthquake damage?

3. Answer
They locate areas most likely to shake during quakes, allowing people to plan safety programs and construct buildings that resist earthquake damage.

4. Floods How are floods constructive?
Some plants that grow along the shores of rivers and lakes are adapted to grow best in flooding conditions.
EX. The Nile River for farming

5. Floods How are floods destructive?
Floods can destroy and erode land and farms.

6. Dams
Dams stop the flow of a river forming a lake

7. Beavers make natural dams.

8. Levees
A levee is a wall of earth or concrete built along the banks of a waterway.

9. Flood Control
To prevent flooding on roads, most roads have storm drains

10. Beach Reclamation
Beaches can erode with waves constantly pulling in and out.
Beach Reclamation is the process of replacing sand on the beach

11. Jetty
A jetty is another way to save beaches, this is a wall- like structure that sticks out into the ocean.

12. Reefs Reefs can protect the coast from erosion by blocking big waves
Reefs can also be artificial