Vertical integration was a business strategy used by Andrew Carnegie, what was this practice

What was the codename of the international coalition formed to seek removal of iraqi troops from kuwait?

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.

Who was the first explorer to sail all the way down the mississippi river