Auschwitz-Birkenau
The German occupiers set-up labour, concentration and death camps in occupied Poland. The Nazi created the death camps of Auschwitz II (Auschwitz-Birkenau), Chełmno, Bełżec, Majdanek, Sobibór and Treblinka. The Nazi German also created many concentration camps such as Auschwitz I.
In Auschwitz and in Dachau
Auschwitz-Birkenau (the Auschwitz group of camps).
They were set up because by this way Hitler segregated the Jews and the other undesirables and kill them. some famous killing centres were Auschwitz.
Auschwitz isn't a country, it is a town in Southern Poland just West of Krakow, made famous by the Germans who set up many concentration camps in the area during the Holocaust.
Auschwitz I Stammlager, Auschwitz II Birkenau and Auschwitz III Monowitz
There were three camps on or near the main site - Auschwitz I, Auschwitz II (Birkenau) and Auschwitz III (Monowitz, also sometimes called Buna) - plus a further 45 sub-camps, some 80 miles away.Please see the related question below for more detail.
No, there was 2 camps. Auschwitz was one and the other one was Auschwitz berkenau. There were three main camps, the third being Monowitz.
The extermination camp was located in Birkenau, also known as Auschwitz II. However, in the other camps that made up the Auschwitz group or complex, prisoners were worked to death on inadequate rations. Please see the related question.
All the concentration camps and extermination camps were run by the SS.
They were sent to Auschwitz by train from different concentration camps.