How did the native Americans BENEFIT from the Colombian exchange?

Is karma the same as destiny, in the sense that everything that happens to you is predetermined? do you believe that "what goes around comes around," and if so is this the same as karma? does everyone get what they deserve, in the end?

Which governing principle is best reflected by the representative government created by the constitution a. separation of opwer b. republicanism c. rule of law d. limited government

This map is depicting the 16th century route of what explorer? a) hernando de soto b) james oglethorpe c) sir walter raleigh d) juan ponce de leon