What was the. major effect of the columbia exchange

How did the nazis go about exterminating the approximately 11 million people who died in the holocaust?

Which of the following terms could be applied to the non-aligned nations during the cold war

The massacre at sand creek was an attack by a colorado militia on peaceful american indians. a colorado militia on a group of dakota warriors. american indians on peaceful white settlers. federal soldiers on a group of cheyenne warriors.