| A | B |
|---|
| service | an activity that people do for others |
| peninsula | land almost entirely surrounded by water |
| human resource | workers and the ideas and skills they bring to their job |
| coastal plain | low land that lies along the ocean |
| manufacturing | the making of goods |
| plateau | high, mostly flat land |
| mineral | a natural substance found in rocks |
| fuel | a natural resource used to make heat, or energy |
| canyon | a deep, narrow valley with steep sides |
| product | something that people make or grow, usually to sell |
| source | the place where a river begins |
| natural resource | a resource that is made by nature, not by man |
| erosion | the wearing away of Earth's surface |
| floodplain | the low, flat land along the river |
| elevation | the height of the land |
| relief | differences in elevation |
| axis | the make-believe line that runs through the Earth's center |
| rotation | a complete turn of the Earth |
| revolution | a complete trip around the sun |
| economy | a system for providing and using goods and services |
