| A | B |
|---|
| geography | the study of people, their enviornment, and theri resources. |
| latitude | the distance in degress north and south from the Equator. |
| longitude | the distance in degrees east or west from the Prime Meridan. |
| irrigation | bringing water to dry lands. |
| map projection | ways of drawing Earth on a flat surface. |
| cartagrapher | Person who makes maps. |
| thematic map | maps that deal with a specific topic, such as popluation, natural resources. |
| natural resources | materials that humans can take from the enviornment to survive and satisfy their needs. |
| isthmus | a narrow strip of land, links North America to South America. |
| elevation | the height above sea level. |
| erosion | gradual wearing away, reduced the area of hills and plains. |
| tributary | a stream or smaller river that flows into a larger one. |
