What is unsaturated flow?

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.

War of 1812 allowed the us to take control of lake erie

Which best describes the albany plan of union? it was a failed plan to eliminate the colonists’ right to vote.it was a failed plan to unite the american colonies.it was a failed plan to make the colonies independent from britain.it was a failed plan to strengthen individual colonial governments.?