This is Anime/Manga Fantasy land!! Who says fire is going to melt sand?? Can you show me in real life sand CUTTING Bulidings and destroying TEMPLES!!?? Or how about Lightning hot enough NOT able to melt Rubber?!!!
Like I said we don't know how the fights will turn out all so you should shutup and wait for that to happen.
Crocodile vs. Smoker???
I said "yes" as a taunt.
My main point was that we don't know the outcome of fights we haven't seen.
As for sand destroying buildings, it's called erosion, it's slow, but it happens, look it up. Also, I was just acknowledging OIP's point. I know this is fantasy and that's why there are no set rules.
My reasons for the Smoker comment are based on Smoker's own comments, not on some theory about how smoker and sand affect each other.