| A | B |
|---|
| basin | area of land drained by a river. |
| contour map | provide detailed information about the earth's surface. |
| contour line | connect areas of the same elevation. |
| altitude | height above sea level. |
| relief | s description of the roughness of the land. |
| republic | government in which citizens have the right to choose their leaders. |
| patricians | members of rich, powerful families. |
| plebeians | a member of the common people of ancient Greece. |
| tribunes | officials who were elected to protect plebeians. |
