No
Yes, she did until it turned grey.
Black and then it turned grey (obviously)
Grey hair with black roots occurs when the hair follicles stop producing pigment, resulting in the hair turning grey. The black roots are the new hair growth that still has pigment.
You dye it.
blond hair
It used to be blond when he was young but when he got older his hair turned grey.
Dawn
Black
Dye it
Yep shave you grey dome!
No, the progress is irreversible, once the hair is grey, it can only become whiter.
The only remedy for grey hair is to dye it black, and then be happy over the fact.