Answer:
I need to know more than just that
The correct answer is that Roman art matured during the Hellenistic era
Oftentimes it is "removing barriers to trade" that motivates countries to join regional trade blocs, since members of such "blocks" have completely free trade with one another. :
<span>A large portion of Siberia is covered in permafrost, which basically means that the ground is frozen all year around. As a result it would be difficult to dig for resources in Siberia. Additionally Siberia is quite cold making the working conditions there very harsh.</span>
