| A | B |
|---|
| irrigation | bringing water to dry land areas |
| flood | dams are used to control flooding |
| accumulation | collection of water behind a dam |
| upstream | swimming in one direction toward the dam |
| reservoir | an artificial lake |
| aqueduct | water pipes leading away from the reservoir |
| hydroelectricity | harnessing heavy flow of water to convert motion into electricity |
| turbine | part of generator that turns |
| ecosystem | plants and other water life found in rivers |
| fish ladder | allow fish to get around the dams |
