| A | B |
|---|
| land bridge that early people may have used to cross from Asia to Alaska | Beringia |
| region that spans from Valley of Mexico to Costa Rica | Yucatan Peninsula |
| most important crop in the Americas | Corn aka Maize |
| how Moche were able to farm in the desert | dug canals to bring water from Andes |
| How Anasazi got water for their people to farm in the desert | rain water off of cliffs |
| 2 groups that formed the mound-building culture | Adena & Hopewell |
| huge sheets of ice | glaciers |
| sole right to trade | monopoly |
| why water level of oceans fell during Ice Age | water trapped in polar ice caps |
| how many scientists believed earliest men arrived in Western Hemisphere | crossed over land bridge |
| how early man first got his food | hunting and gathering |
| how discovery of agriculture changed the way ancient man lived | remain in one area longer |
| unusual place to archaeologists look for clues of ancient man | garbage dumps |
