Sita; she even threw herself into the fire to prove her virtue and purity
Staging area
Supply Air Lock
Hot Zone
A letter of the alphabet that’s different from the others, in form of height and how it looks. (If that’s what you meant)
Conflict is the base of the story. Without conflict, the story has no plot, the characters don't experience anything, and there isn't really any developments at all. As for the second question, I think that's your own opinion.