Which is the most accurate definition of body language? inappropriate comments about a coworker's size or shape nonverbal communication of a person's thoughts and attitudes slang words used to discuss people who aren't in the room the range of words a person uses in verbal communication

Ascientist performs an experiment where she measures the mass of a piece of metal, pours acid onto the metal, washes the metal, and then re-measures the mass of the metal. the scientist repeats the experiment several times, each time increasing the amount of acid used. the dependent variable in the experiment is the: initial mass of the metal final mass of the metal amount of acid used washing the metal