Question

state two ways to prevent the rusting of iron?

Answer 1

Painting
Painting the Iron surface will create a barrier between the Iron and the atmosphere, which will protect the Iron from rusting.

Electroplating
Iron sheets can be electroplated with a metal which is more reactive than Iron, so that instead of the Iron getting oxidized, the other metal gets oxidized (because it is more reactive).

Answer 2

Prevent the iron from exposure to the atmosphere which would prevent moisture content and leads to prevent corrosion. Prevent pouring water or acid