Eragon Questions

Would Eragon be capable of being a hero if he didn't have Saphira?
In what ways, other than fighting, does Eragon prove his heroism?
Are Eragon's powers gifts of fate, or something that he earns?
Is Alagaësia just a fantasy world, or do you recognize aspects of our own world in it? If so, which ones?
In Eragon, how important is one's heritage? Is family background something to change or overcome? Or is it something from which characters draw strength? Explain your answer.
If you had a dragon, what would you do with it?