Mesopotamia is between two rivers: Tigirs and Euphrates
<span>The peer review process can create a conflict of interest because favoritism can be shown. Peers often want to support their friends or those close to them so will choose their projects over others. They are trying to help those they care about to succeed.</span>
The correct answer is <span>b methodically purging potential rivals
In these purges millions of people died. Many of them would just disappear over night while other would be sent to Siberia into Gulags or to work until they die in mines and similar projects. He would even remove them from history by removing them from pictures and destroying everything they ever had or wrote or built.</span>