Question

which multimedia element would most appeal to an audiences emotions in a presentation about global warming?
a graph showing an increase in airborne chemicals affecting the ozone layer
a photo of a dried - up lake and a photo of a family swimming in the lake before it dried up
an interview with a scientist explaining the risks that carbon poses to the ozone layer
a video lecture of a professor discussing changes in climates around the world

Explanation:

A photo of a dried - up lake and a photo of a family swimming in the lake before it dried up can evoke emotions as it shows a stark contrast and a personal connection to the environmental change. A graph is more factual, an interview with a scientist and a video lecture by a professor are more informative and less likely to directly appeal to emotions.

Answer:

a photo of a dried - up lake and a photo of a family swimming in the lake before it dried up