| A | B |
|---|
| glacier | a huge mass of ice moving slowly over land |
| epoch | a period of time, especially one that is remarkable in some way |
| agriculture | the business of raising plants and animals for food; farming |
| mesa | a flat-topped hill or mountain with steep sides, common in the southwestern United States |
| potlatch | a ceremony among the Native Americans of the northwest Pacific coast in which the host distributes gifts |
| mound | a large, steep platform built for protection, burial, or religious purposes |
| Anasazi | people of the desert |
| confederation | a group of states or nations united for a common goal |
| long house | a long wooden house in which several Iroquois families lived together |
| Makah | people of the coast |
| Mississippians | people of the river |
| Creek | people of the forest |
