The North Atlantic Treaty Organization was created in 1949

Unlike european immigrants, chinese immigrants in the 1800s faced

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.

Match each model with its name and the name of the scientist who created it.