i dont know this.....................
Answer:
everything
Explanation:
its now portable and safer an better frame and better texture and detail and a better picture in general
The Romans constructed aqueducts throughout their Republic and later Empire, to bring water from outside sources into cities and towns. ... Aqueducts moved water through gravity alone, along a slight overall downward gradient within conduits of stone, brick, or concrete; the steeper the gradient, the faster the flow.
