The city-states of ancient Mesopotamia were independent cities constructed around temples and entirely self-contained within mighty perimeter walls.<span> City-states were unified with each other only by their shared use of the Sumerian language. They spent most of their time engaged in conflict over resources.</span>
Magma in the Earth's mantle moves in convection currents. The hot core heats the material above it, causing it to rise toward the crust, where it cools. The heat comes from the intense pressure on the rock, combined with the energy released from natural radioactive decay of elements.
Nabta playa is located in Egypt, 800km south oh modern day ciro, PR about 100km west of abo simble.
[The answer would be sustainable agriculture] give me da rank or hit the flank
Technology has made it to where you can find or look for almost anyone you can think of at the click of a mouse. Technology has made it easier for people to communicate and meet other people.