Describe how the early anasazi lived

During world war ll, the untied states was a member of the allies axis european theater pacific theater

Which of the following is an example of the pull factor known as economic migration? a. better educational opportunities pulling people towards a new country b. mexican laborers entering the us to work in agricultural jobs c. joining family members that are already in a new country d. crop failures driving people away from their country i am unsure on this question, i was thinking b? but i could be wrong.

How did the incas unite the andes mountains?