The order in which they became operational as extermination camps is as follows:
The Nazi extermination camps (that is, camps built solely for the purpose of killing) were all built in 1941-42. There were 6-8 such camps. Please see the related questions.
Concentration camps, Extermination camps and Death camps
They were built by the SS, using slave labour.
Nearly all the extermination camps were built on Polish territory. Please see the related question.
Concentration camps were used for forced prison labor, while extermination camps were built to kill all prisoners.
The only camps built specifically for Jews were the extermination (death) camps. All the other camps had other prisoners, too.
The extermination camps were run by the SS.
concentration camps are prisons in a sense where as extermination camps are like death row u will certainly die in a extermination camp.
He never went to any extermination camps.
Nazi leaders wanted to keep the existence of extermination camps secret.
Ghettos, concentration camps and extermination camps.
No, but it had the Mauthausen group of camps.