Question

Biology:what are carbon copies? how much time will it take to form a carbon copy in humans?​

Answer 1

Answer:

Explanation:

Before the development of photographic copiers, a carbon copy—not to be confused with the carbon print family of photographic reproduction processes—was the under-copy of a typed or written document placed over carbon paper and the under-copy sheet itself. When copies of business letters were so produced, it was customary to use the acronym "CC" or "cc" before a colon and below the writer's signature to inform the principal recipient that carbon copies had been made and distributed to the parties listed after the colon.With the advent of word processors and e-mail, "cc" is used as a merely formal indication of the distribution of letters to secondary recipients.