What was an effect of the Columbian Exchange? Native American populations decreased

Europeans would not plant new American crops

Asian goods became less expensive and less traded

African traditions were replaced by American traditions

mass production/ assembly line production

they had many gains 1 one freedom for slaves the major cause of the civil war is that the   north wanted freedom for slaves but the south didn; t creaitng the civil war

another gain they have is poltiical influence

poltiical influence is a big thing everywhere even now peoplle are always trying to get the head up in poltics thats what they did by giving the republicians a good name for freeing slaves