Can anyone briefly explain me the period of "Industrial Revolution"

Which statement is true about citizenship and the us government

Which of these statements describes a long-term impact of european imperialism in africa? a. african countries joined together to present a united front against imperialism. b. europeans paid african countries after colonizing them, offering these new countries a fresh start. c. european powers drew the current borders, splitting ethnic groups among modern countries. d. africans became more loyal to their countries than to their ethnic groups.

The northwest ordinance guaranteed three rights for the settlers of the northwest territory. what were they?