Unit 1 Lesson 1
nomad:(n) a person with no permanent home who travels from place to place
migration:(n) movement from one place to another
agriculture:(n) the skill of raising plants and animals for human use
adapt:(v) to change the way one lives to fit different conditions
technology:(n) the use of scientific knowledge to solve problems
archaeology:(n) the study of objects to learn about life in the past
artifact:(n) an object made by people
