| A | B |
|---|
| alliance | an agreement |
| arid | dry |
| density | the number of people in an area |
| exports | products sent out of a country |
| hydroelectric | power produced by the generation of water |
| imports | products brought into a country |
| inflation | rapid rise in prices...money drops value |
| metropolitan | city and its surrounding area |
| minerals | ores and substances from earth |
| navigable | waterway where boats can pass through |
| savanna | grassland with some trees |
| self-sufficient | independent-without help |
| steppe | semi-arid land with little water |
| tariff | tax on imports and exports |
| tributaries | streams that flow into streams or rivers |
| watershed | area that supplies water to rivers and lakes |
| occupation | job |
| simulation | similar to the real thing |
| treaty | a peace agreement |
| topography | the surface features of the land |
