Question

What is rusting? How does it harm object?

Answer 1

Rusting is a process by which iron forms iron oxide in the presence of oxygen and water. As a result of rusting, a reddish brown layer called rust is formed on the surface of the iron, which falls off in course of time, again exposing the metal surface for further rusting. Thus, the iron object loses its durability, and becomes weak due to the repetition of this process.