<span>Pax Romana was the long period of relative peacefulness and minimal expansion by the Roman military force experienced by the Roman Empire after the end of the Final War of the Roman Republic </span>
Comparative advantage.
The production of a good or performance of a skill for which a person is best suited is what is termed comparative advantage. Or, on a national level, the production of goods for which a nation's resources are best suited is comparative advantage.
Absolute advantage refers to one person (or one nation) having a consistent advantage over another in making a particular product efficiently and best.
Christopher Columbus is the explorer who is credited for discovering America. Of course, there were already people living in America at the time who we call Native Americans. There even was a European, Leif Ericsson, who had been to the Americas before. However, it was Columbus' voyage that started the exploration and colonization of the Americas.
Answer:
Barbaric tribes.
Explanation:
Invasions by Barbarian tribes. The most straightforward theory for Western Rome's collapse pins the fall on a string of military losses sustained against outside forces. Rome had tangled with Germanic tribes for centuries, but by the 300s “barbarian” groups like the Goths had encroached beyond the Empire's borders.
Paraphrase this ok