As the Roman Empire declined, its famous road system suffered. Roads gradually broke down because they were not maintained. What was a major effect of this?

trade routes/connections between civilizations suffered not to mention diversity dwindled and theft along the road systems grew more common since it wasn't guarded

Explanation:

Trade and connection

Explanation:

The Romans like to go to the mane Empire so the created roads so that the people could be connected. Another reason is the other countries trade with the Romans so the roads were used quite often.

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this is where the plate motions aswell form magma