Answer:
Irrigation- Mesopotamians made the first working irrigation system, controlling water to go from one place to another. The water came from the Euphrates and Tigris rivers. They used the water for farming, so they wouldn't have to walk back and forth.
Tigris and Euphrates
Irrigation provided Mesopotamian civilization with the ability to stretch the river's waters into farm lands. This led to engineering advances like the construction of canals, dams, reservoirs, drains and aqueducts. One of the prime duties of the king was to maintain these essential waterways.
Step-by-step explanation: