Which industry did not exist in the us until the second industrial revolution

Which statement best describes the underground railroad? a.) it is a train that took slaves from the south to the north. b.) it is a business that harriet tubman founded to slaves become free. c.) it is a secret route that slaves took to escape from southern slave states to the north. d.) it is a road that slave owners disliked using for travel.

What form of government is powers of states?

What has been a long term effect on the panama canal