Because sandpaper is an abrasive and will leave minute scratches. Any surface damage from scratches could lead to rust.
Such hard abrasion will scratch the metal surface. This will make future cleaning more difficult as staining will get inside the scratches and be difficult to remove.
It is not advisable to attempt cleaning the inside of an LCD TV screen at home. It should be brought to a professional. If you are going to attempt it, the entire back of the TV will need to be removed.
You can but it is not advisable.
both, on the outside it's aluminum oxide but the inside is just aluminum
Yes.
Yes.
Because of energy and the different components
the air inside the can keeps it afloat
It's hard because of the chemicals that are inside of it. Though aluminum foil is not so hard it's still made out of aluminum.
The inside of a soda can is made of aluminum that is why they do not rust they only rust if the aluminum is all scratched up.
By radiation
radiation