Answer:
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.
Draw them where ur eyes are on ur face draw eyes on a portrait is the same as looking in the mirror
Which notes do we need to identify?
The answer is D, hope this helps!