Transportation barriers in north america

Which government entity is given the task of initiating articles of impeachment against the president when the need arises

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. (10 points)

Someone who accepted the beliefs of social darwinism would have also agreed with which of these statements?