Did the 'Columbian Exchange ' between the Eastern and Western hemispheres make a better world ? Explain why or why not .

Which are in millennium development goals check all that apply

Which was the cause of the rise of the persian empire?

In at least two paragraphs, discuss the differences between the principles of republicanism and democracy. explain whether you think the united states is more of a republic or a democracy. refer to at least one example from the constitution.