Help me plz This is a history assigment

In one to two paragraphs, compare and contrast the american, french, and mexican revolution.

Why was the battle of stalingrad a turning point in the european war

What is the significance of the battle of saratoga? a. the defeat at saratoga allowed the british to invade new england by land. b. after the defeat at saratoga france refuse to sign a treaty with the united states. c. the british won a decisive victory at saratoga. d. after the victory at saratoga france gave open support to the united states including arms money and ships.