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.
This is an amazing price of art
Dude this isn’t hard. It’s your assignment, and I’m not taking points here or saying random things, but this is the equivalent of cheating. All they’re asking is for you to be creative and finish the story. They don’t want to see what a random person in the internet knows, they want to see what YOU know. You can do it, just put your head to it and be creative :D