Because they are coated with a thin layer of some mystery metal. Eventually, it wears off and the base metal is what you see.
discolour
If you die with a fake tan it will not last. The body will begin to decompose and the skin will fade and discolor.
discolor verb (smoke will discolor the fabric) stain, mark, soil, dirty, streak, smear, spot, tarnish, sully, spoil, mar, blemish; blacken, char; fade, bleach.
In grade school we wore friendship beads on our shoes. I had Kangaroos and they had pockets on them. I don't know where the beads came from or what I did with them but the fad seemed to fade away after about mid 80s.
Real Silver has the numbers 925 on it, but fake Silver doesn't. And real silver won't fade, but will tarnish and fake will fade and turn into like a copper color.
yes because the silver rubs it underneath
It will tarnish and need to be cleaned or polished to bring back the shine.
Often it is the ink, not the printer. Good brands of printers (HP, Canon, etc.) with genuine brand inks tend to retain their print quality and color. Paper can be a factor, too. Cheap, highly porous paper is not a good surface, and cheap photo paper can fade or discolor due to the coating.
no it doesnt
Sterling silver can fade as it is coated with a substance called rhodium. Rhodium is a coating used on all white tone jewelry. It gives the jewelry its white color and shine. When this rhodium wears off due to wear and tear of the item, it can be replaced at a local jewelry store.
Yes, it will fade eventually due to your skin being in contact with the gold plated. If it's always touching your clothing and never your neck (if it's a necklace or pendant for example) you might have luck and it might not fade until a long time, but I never tried.
'Fade' can indeed be a noun - as in 'a fade to black' in a movie. Fade is its own noun.