Final answer:
Natural hair colors are also known as vegetable haircolors. Permanent hair color alters the hair's structure chemically, replacing the natural color with synthetic color that lasts longer.
Step-by-step explanation:
Natural hair colors are also known as vegetable haircolors. Hair color can be changed by a chemical process, which is classified as permanent or semi-permanent. Permanent hair color alters the hair's structure chemically, replacing the natural color with synthetic color that lasts longer.