| A | B |
|---|
| migration | movement from one part of something to another |
| nomad | a member of a people having no permanent abode, and who travel from place to place to find fresh pasture for their livestock |
| strait | a narrow passage of water connecting two seas or two other large areas of water |
| cultivate | prepare and use (land) for crops or gardening |
| culture | the customs, arts, social institutions, and achievements of a particular nation, people, or other social group |
| civilization | the stage of human social and cultural development and organization that is considered most advanced |
| decline | become smaller, fewer, or less; decrease |
| theocracy | a system of government in which priests rule in the name of God or a god |
| hieroglyphics | a system of writing mainly in pictorial characters |
| terrace | make or form (sloping land) into a number of level flat areas resembling a series of steps |
| collective | done by people acting as a group |
| pueblo | a North American Indian settlement of the southwestern US, especially one consisting of multistoried adobe houses built by the Pueblo people |
| potlatch | an opulent ceremonial feast at which possessions are given away or destroyed to display wealth or enhance prestige |
| irrigation | the supply of water to land or crops to help growth, typically by means of channels |
| ritual | a religious or solemn ceremony consisting of a series of actions performed according to a prescribed order |
| federation | an organization or group within which smaller divisions have some degree of internal autonomy |
| clan | a family, especially a large one |
| Beringia | landmass that used to bridge the gap between North America and Asia |
