Answer:
Irrigation allowed for the movement of water to fields, even without rain.
Step-by-step explanation:
Irrigation processes were man made technology that humans can do to allocate water from natural sources (such as rivers or lakes) to the area that's located pretty far away from them.
The people from Neolithic era used the combination of stones and clay to form some sort of pathway that the water can passed through to distributes the water from rivers/lakes to their crops field.