| A | B |
|---|
| archeologist | a scientis who examines objects learn about the human past |
| Stone Age | a perod of time during which eraly humnas made lstign tools and weapons mainly from stone |
| nomad | A PEROSN WHO HAS NO SETTLED HOME |
| fertile | rich in the substances plants need to grow well |
| irrigation | supplying land with water through a netwrok of canals |
| surplus | more than is needed |
| artisan | a worker who is especially skilled at crafting things by hand |
| social class | a group of people with similar backgrounds, incomes and ways of living |
| civilization | a society with cities, a central government, jobs and social classes |
| domesticate | adapt wild animals or plants for human use |
