How did the balance of power between spain and united states change as a result of america war?

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 was the significance of the battle of saratoga

What are some effects outside of europe because of world war 1?