What was used for transferring water to dry places in Mesopotamia? Aka:

provided the key to successful farming in Mesopotamia where little rain fell.

(I truly can't seem to find the answer, I feel like i'm skipping over something...)

How did the united states’ approach regarding the japanese economy shift during the korean war? it focused on growth rather than reform. it focused on reform rather than growth. it focused on reform rather than stabilization. it focused on stabilization rather than decline.