Answers

2015-08-23T21:00:14+05:30
If not iron will react with oxygen and forms rust
0
2015-08-24T21:43:47+05:30
painting is a method to prevent corrosion i.e rusting of iron. other methods like galvanisation, oiling, greasing also helps in prevention of rusting.
thankĀ u . comment for changes to answer better next time.
0