Final answer:
You can refer to additional information during a presentation by using animations and the Notes section.
Step-by-step explanation:
During a presentation, there are a few ways to refer to additional information.
a. Animations will help you emphasize key points on a specific slide. You can use animations such as slide transitions or entrance animations to draw attention to important information on the slide.
b. The Notes section is only visible to you in the Slide view and not in the main Slide Show view. You can add additional information, reminders, or extra content in the Notes section that can be helpful to refer to during your presentation.