Earth Sciences homework help. 1-Under what circumstances would manuscript speaking be a better form of delivery than extemporaneous speaking? Why do you believe that many communication instructors discourage students from using manuscript delivery?2- Discuss three ways in which eye contact has a positive effect on a speaker’s credibility.3-Is a “perfect” or “near perfect” voice necessary for an effective presentation? Why or why not?4-Explain the advantages and disadvantages of impromptu speaking.5-Describe four tips for using note cards effectively.
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