Question

Define corrosion.Explain any four methods to prevent corrosion

Answer 1

Hope this pic helps you.

Answer 2

corrosion is the process in which rust get filled onto the metal and it is get corroded by that
pictures to prevent corrosion are

we can make mixture or alloy of a metal
we can coat a film of zinc or other non corrosive metal
painting is another process to prevent corrosion