I have two questions about Batman: The Dark Knight Returns, Part 2.
How did Superman get his health back?
He was shown to regain his health by touching sunflowers. How did this work? Is it just because it is yellow, or does Superman have the power to absorb life out of things (remember, the whole field withers as he gains his muscles)?
How did Oliver Queen loose an arm?
It seems like Superman had something to do with that, but they never go into that part.