What where the two main compromises if the constitutional convention and how did they effect the government

What kind os source would a historian use to get a firsthand account of a past event

Which two important economic activities in the west are possible because of the united states natural resources

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.