The dust bowl was from 1930-1936. It is an area of land that has been lost and reduced to dust. Specifically this is talking about Oklahoma, Kansas, and northern Texas where soil erosion caused bad wind storms causing people to move.
4. is correct
11. It's more that Zeena is sick and was once beautiful and helpful (helped Ethan's mom ) and now while she is sick he is looking at the younger Maddie that is helping Zeena around the house-- it is kind of ironic.
12. Wharton is def. using foreshadowing, but in general she set up a frame for her narrative.
14. Yes, but also that he strikes Zeena to be a monster and darkness while Mattie is this light at the end of the tunnel. He feels stuck in the relationship and only stays because Zeena is sick and he is poor, otherwise, he would have left long before.
Answer:
You are completely declaring your life to only do the will of God.