The type of presentation aids that speakers most typically make use of are visual aids: pictures, diagrams, charts and graphs, maps, and the like. Audible aids include musical excerpts, audio speech excerpts, and sound effects. A speaker may also use fragrance samples or a food samples as olfactory or gustatory aids
The health education philosophy that espouses the enactment of policies or laws to enhance the health of individuals and groups is: <span>social change philosophy</span>
