<span>provide free labor and therefore an economic advantage to slaveholding states. let white men build businesses rather than work on the farm</span>
The 13th colonies were afraid the British Navy were surrounding them.
The answer would be the geography of the country. Its mountain terrain and bodies of water created a boundary to each city-state. Each city-state created their own society. For example, Sparta had created a military society while Athens is the center of many intelligent people. Each city-state also has their worshipped specific gods, Aside from Zeus, Poseidon, and Hades.
I had a test with a question like this but we had options and I put answer D. Gunpowder. And it was right so idk about u