| A | B |
|---|
| silt | small particles of rich soil |
| atmosphere | the layer of the air surrounding the earth |
| phosphate | a mineral salt used in fertilizer |
| republic | a government headed by a president with a legislature that makes laws |
| fellahin | peasant farmers |
| bazaar | a marketplace |
| service industries | provide services to people rather than producing goods |
| mosques | places of worship for followers of Islam |
| aquifer | underground rock layer that stores a large amount of water |
| dictatorship | a government under contro of one all-powerful leader |
| erg | a huge, shifting sand dune |
| civil war | conflict between different groups inside a country |
| secular | a nonreligious policy |
| casbah | older sections of the cities in Algiers |
| constitutional monarchy | a king or queen is the head of state |
| geography | the study of the earth in all its variety |
| landforms | individual features of the land such as mountains and valleys |
| environment | natural surroundings |
| global positioning system | a receiver that receives signals from satellites |
| geographic information systems | special computer software which help geographers input data they collect |
| artifacts | tools, pottery, paintings, human fossils from times past |
| fossils | the remains or impressions of early humans, animals, or plants |
| solar system | earth, eight other planets, and thousands of smaller bodies that all revolve aound the sun |
| orbit | the pathe a planet takes around the sun |
| oasis | fertile or green area in a desert |
