According to common sense, Britain could not effectively rule the American colonies because

They knew that they could not take the americans guns away because we were too powerful and didn't want our freedom taken away.

Explanation:

- "made the south's economy grow rapidly and a small effect that a lot of people don't know is that it made the more demand of slaves and cotton products. and also new states formed due to plantations growing in size."

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i beleive its 1)aids