| A | B |
|---|
| Paleolithic Age | the first period of the Stone Age, called the Old Stone Age, from about 2 million years ago to around 8000 BCE |
| Neolithic Age | the second period of the Stone Age, called the New Stone Age, lasted from around 8000 BCE to 3000 BCE |
| Fertile Crescent | an arc-shaped region in Southwest Asia, with rich soil |
| resource | something that can be used to fulfill a need |
| agriculture | the business of farming, growing crops and raising animals |
| nomad | one who moves from place to place with no permanent home |
| trade | the business of buying and selling good or exchanging items |
| domesticate | to train a wild animal to be useful to humans |
