MS Power Point
In a PowerPoint presentation

Both can be inserted
Sound clips can be inserted but not movie clips
Movie clips can be inserted but not sound clips
Both cannot be inserted

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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 shift key while dragging 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 & Drag a corner sizing handle

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