| A | B |
| arid | being without moisture; extremely dry; parched |
| irrigation | the artificial application of water to land to assist in the production of crops. |
| plateau | a land area having a relatively level surface considerably raised above adjoining land on at least one side, and often cut by deep canyons. |
| tundra | one of the vast, nearly level, treeless plains of the arctic regions of Europe, Asia, and North America. |
| cartographer | the production of maps, including construction of projections, design, compilation, drafting, and reproduction. |
| isthmus | a narrow strip of land, bordered on both sides by water, connecting two larger bodies of land. |
| prairie | a tract of grassland; meadow |
| uninhabitable | Unfit for habitation: an uninhabitable island. |
| delta | a nearly flat plain of alluvial deposit between diverging branches of the mouth of a river, often, though not necessarily, triangular: the Nile delta. |
| mesa | land formation, less extensive than a plateau, having steep walls and a relatively flat top and common in arid and semiarid parts of the southwestern U.S. and Mexico. |
| reservoir | a natural or artificial place where water is collected and stored for use, esp. water for supplying a community, irrigating land, furnishing power, etc. |
| urban | characteristic of or accustomed to cities |
| fjord | a long, narrow arm of the sea bordered by steep cliffs: usually formed by glacial erosion. |
| nomad | a member of a people or tribe that has no permanent abode but moves about from place to place, usually seasonally and often following a traditional route or circuit according to the state of the pasturage or food supply. |
| seismology | the science or study of earthquakes and their phenomena |