How did the industrial revolution to increase germany's military power

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.

Which is true about pontiacs war in 1763

Describe two observations that galileo was the first to make with his telescope.