Question

What is an ore?
What is the difference between corrosion and rusting?
What is electroplating?

Answer 1

1.
a naturally occurring solid material from which a metal or valuable mineral can be extracted profitably.

2.
Corrosion is a chemical reaction (most likely an oxidation reaction, which you will learn in higher classes) that causes damage to metals as you can see your cycle chain, window bars, etc.
Rusting is a specific case of corrosion where the metal ‘iron’ is the victim which reacts with air or moisture to get corroded.

3.
Electroplating is the process of applying a metal coating on another piece of metal (or another conductive surface) through an electro-deposition process