What was one major effect of the American victory in the revolutionary war?

B.

Explanation:

Because several thousand slaves won their freedom by serving on both sides of the War of Independence. As a result of the Revolution, a surprising number of slaves were manumitted, while thousands of others freed themselves by running away. In Georgia alone, 5000 slaves, a third of the colony's prewar total, escaped.

I had to do some research for this one

Hope i helped.:D

climate change is the big reason to the decline of the indus valley which also caused floods. so i dont know what answer would best fit the description thats just what i found online! have an awesome