PLEASE TELL ME IF THIS IS CORRECT I ONLY HAVE 3 MIN LEFT PLEASE HELP ( I'm not subscribed to , do I can't see the answer by looking it up. if you are please check to see if someone else got the answer)

tone: how presenters change their voices to express emotion or mood

voice: any of the varieties of a language that a presenter uses in a particular social situation, including the use of formal or informal language

register a presenter's use of key terms related to the topic, as well as the use of vocabulary that is clear, concise, and easily understood by the audience

vocab :any of the varieties of a language that a presenter uses in a particular social situation, including the use of formal or informal language

:)

alone =having no one else present.

technical documents should be clear and precise. basically, clarity is the key element in a successful technical document.