What are the physical resources of ancient rome?

Answer 1

Grain is the biggest. Grain was to the Romans as oil is to us. The grain supply from Egypt was the most important supply line to ROme and the city even had a grain doel. Other than that in the early Rome salt was what soliders were paid in. Then your basics like gold and iron stuff like that. On could aslo consider slaves to be an important resource particularly to the upper classes.