When adding a Movie from the Insert tab, you have the choice of:

What is the purpose of the small down arrow that is next to each of the options in the Home/Paragraph/Bullets, Numbering and Column buttons?

We cannot compare current presentations with another one and then merge them.

Column and bar charts have the same set of options.

What are headers and footers?

If you want to create a pattern or blueprint of a slide or group of slides that you save as a .potx file and then can reuse , you should create:

Why would you use the Outline view?

How can you add more layouts to the Layout Gallery?

You are creating an industrial presentation of a new software program and would like to include an image of your program. How can you use PowerPoint to do this?

How would you save your layouts, colors, fonts, effects, background styles and content for others to use with their presentations?

Why would you trim a video?