Answer:
lack of financial support
The primary function of the sentence "Nature hath made one world and art another" would be that invites the reader to contemplate the nature of reality and art.
The boy that is there cause there ain't any other person in the poem
The quote means that Atticus is a great man who stands behind what he says and does, behaving the same in public as he does in his home. Unlike him, the others are two-faced, for example, publicly attacking Tom Robinson, while believing in the comfort of their homes that he might be innocent.