The answer is C due to the rain making contact with the iron it creates moisture which cause the iron to begin oxidizing which causes the iron to rust which is a chemical reaction then the blade which was once malleable because it was heat becomes harden and rust is created as I said before the physical aspect of the iron chances due to rust developing on it it's no longer has the luster it once had
Well people say the world's going to end soon so people need to find another planet to live on they're thinking about Mars at the moment
Answer:
4chlorine;12thousand ;17zinc;2grams;three 8carbon;15aluminium
