Old Man at the Bridge Questions and Answers

From “The old man at the bridge” by Earnest Hemingway.

From the story “The old man at the bridge” by Earnest Hemingway.

E.M. Hemingway’s story “Old Man at the Bridge” starts with the old man sitting in “very dusty clothes” and ends with the man sitting down backwards “in the dust”. What does the “dust” signify here?

Explain the significance of the line “There was nothing to do about him” in the story “Old Man at the Bridge” written by Earnest Hemingway.