Asykes23. How do you know If I like to sing

What determines the properties of a mineral

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.

Monopolies were legal in the united states until a)the 1860s. b)the 1870s. c)the 1880s. d)the 1890s.