Answer:
The answer is that The economy of ancient Mesopotamia, like that of modern Iraq, depended upon exporting goods.
Explanation:
Here is the reason, both cities are neighbors right? Then, they both have to export goods to trade.
Because they Both trade
And they are in the Same area
Hope this helps ^^
A. thats not really essential
Search it up?, because I don't know
Sorry
Crop irrigation, bathing and drinking water, fish for food, the reeds growing there(for building) and ofc To Travel up and down