Hair coloring is the practice of changing the color of hair. The main reasons for this practice are cosmetic (e.g., to cover gray hair, to change to a color regarded as more fashionable or desirable, or to restore the original hair color after it has been discolored by hairdressing processes or sun bleaching).
falsetto. 1  an unnaturally or artificially high-pitched voice or register, especially in a man. 2  a person, especially a man, who sings with such a voice. 3  of, noting, or having the quality and compass of such a voice. 4  in a falsetto.
An argument from false premises is a line of reasoning which can lead to wrong results. A false premise is an untrue proposition that forms part of the basis of a logical syllogism. Since the premise (assumption) is not correct, the conclusion drawn may also be wrong. However, whether or not an argument is  valid  depends on whether it is consistent, not whether its premises are true.