A difficulty in understanding the Colombian exchange is that

What do states primarily use their reserved powers to regulate? a. services related to national citizenship b. issues that affect day-to-day life for state residents c. issues involving taxation d. issues that affect states' interaction with the federal government

Faust is written by? a. adam smithb. hitlerc. goethed. karl marx

Which factor was a major cause of the great depression of the 1930?