political science

Each of the following questions require a short-essay responses.  I am looking for complete and thoughtful responses.  Please define what needs to be defined and offer examples and explanations when needed.  

1.  Please define and explain what it means to live in a democracy.  What is a democracy?  What is the role of government in a democracy?  What is your role and responsibility in a democracy?

2.  What do you think are the most urgent challenges facing us as a nation?  Please be specific.  

3.  Imagine that you are trying to convince a friend or family member about the importance of voting.  What would you say to them?