Answer:
Transition effects—or transitions as they are often called—are the movements you see when one slide changes to another in Slide Show view. Transition effects are different from animation effects. If you define two or more areas, pan-and-zoom animates your presentation of the image by zooming in and out while traversing it with simulated camera movements as it moves smoothly from one area to another. You can also rotate while panning and zooming.
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