What would happen to iron railings on the road side if they are not painted?why does in happen so?

What would happen to iron railings on the road side if they are not pa

1.	What would happen to iron railings on the road side if they are not painted?why does in happen so?
Answer» The iron railings on road side get corroded and get turn into red orange corroded it means the deposit of rust . It happens due to the presence of oxygen in atmosphere qhich reacts with iron railing and make it corroded. The iron railings get corroded and turn red orange colour which means the deposit of rust. It is happened because of the moisture present in atmosphere. The iron reacts with the moisture and forms rust. This railings are corroded by the moisture present in atmosphere