Answer:
<em>causes : </em>
<em>efforts to mine coal, european imperialism, and the emergence of capitalism.</em>
<em></em>
<em>consequences : </em>
<em>poor working conditions, low wages, child labor, and pollution.</em>
Villages and towns were built around ubaid farming communities. They are known as Sumerians. They were in control of the area by 3000 B.C. Their culture was comprised of a group of city-states.