Not fully understanding your question but You could look up information on that subjct
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.
We breathe our carbon dioxide, so do plants. Animals and plants get rid of carbon dioxide gas through a process called respiration.
A state of political rivalry and tension existing between the Western Allies (favoring democratically elected governments and independent European states) and the Soviet Union (striving for a Soviet-influenced bloc of communist countries). The Cold War started because Europe lost power at the end of World War II. ... This left the Soviet Union and the United States competing for economic and military rule. Both countries believed their policies were the best and ultimately wanted all others to follow.