Greece and rome were the centre of ancient civilization justify

In any case, the Roman conquest carried many features of Greek civilization to far-flung parts of the Mediterranean world and Western Europe. Through the mediation of the Romans, therefore, Greek civilization came to be the founding culture of Western civilization.

I think D

Explanation:

The Appalachian Mountains, often called the Appalachians, are a system of mountains in eastern North America. The Appalachians first formed roughly 480 million years ago during the Ordovician Period. They once reached elevations similar to those of the Alps and the Rocky Mountains before experiencing natural erosion.