Question

What are the four ways to prevent rusting?

Answer 1

1.painting.
2. coating with steel.
3.continuously cleaning its surface(not possible at all in our busy life).
4. not allowing it 2 come in contact with air or water
  because iron react with oxygen to produce brown substance named rust
hope i helpd u plz mark as the brainliest

Answer 2

1)galvanising the metal.
2)painting the metal.
3)greasing or oiling the metal.
4)electroplating.
5)chromium plating