MS Power Point
To maintain the perspective (height and width ratio) of an object when resizing, you need to

Drag a corner sizing handle
Press and hold the alt + ctrl keys while dragging a middle handle
Press and hold the shift key while dragging a corner sizing handle
Press and hold the shift key while dragging a corner sizing handle & Drag a corner sizing handle

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MS Power Point
Auto clip art is a feature that

scans your presentation for incorrect spelling in word art objects
scans your presentation for incorrect spelling of words on each slide
automatically places clip art in your presentation
All of these

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