The types of media for her presentation would be graphs and photos. The graphs would help her show climate change. Graphs could also help her show the evolution of birds. Photos could be used to compare birds to dinosaurs. Photos could also be used to show photos of the earth. The types of media Khianna should use in her presentation should be graphs, photos, and or a video.
There aren't really any types of media that shouldn't be used. Although sounds, and animations would not be effective to her presentation. As long as her media backs up her theories she should be fine. Animations and sounds would not work as as media pieces in her presentation because they wouldn't effect anything. These two media pieces also would not help persuade people.
Two examples of media pieces that would be affective would be a graph/chart and a video. The graph or chart could show climate change throughout history. The video could be about dinosaur and bird evolution. Two examples that would not be effective would be audio and animations. These examples would not be effective because they wouldn't help inform or entertain the audience.