They are used to transfer water efficiently through the towns and cities of Rome.
As you didn't specify what exactly is required, I am guessing the correct answer that is requested here is - Charlemagne was able to bring together and unit a big portion of Western Europe during the early middle ages under one banner. This is his most known achievement, or at least the one that is most talked about. Furthermore, doing this he helped lay out the foundations for countries that would be later known as France and Germany :)
I think D maybe I hope I’m right
<span>the powers that are solely at the state level is : Implied power
implied power refer to the power of government that is not directly written in the constitution, but exist by reading between the lines of the consittution.
One example of an implied power is Congress'' right to make a bank </span>
