Question

metals are usually Shiny but they appear to be dull how can be their shining be restored​

Answer 1

Explanation:

Metals are said to be shiny. ... Yes, metals have a lustre or are shiny. Some metals develop a layer of oxide over them and thus might appear to be dull like magnesium. The brightness can be resumed by rubbing off the layer deposited over the metal.

Answer 2

Answer:

Metals are shiny but once they lose their shine they can't be brought back..

Explanation:

Metals are lustrous than non metals. The problem with metals is when they are exposed to the atmosphere they react and become rusted.This mainly happens in Iron.

Before the rusting you can paint it to prevent the rust..

Hope it helps u..