Question

how can you addanimation effect to slide

Answer 1

Apply multiple animation effects to one object

Select the object on the slide that you want to animate.

On the Animations tab, click Animation Pane.

Click Add Animation, and pick an animation effect.

To apply additional animation effects to the same object, select it, click Add Animation and pick another animation effect.

Answer 2

Click on animation tab
Then
Select the animation that you want