Communication is verbal if it includes talking with other people. This can be face-to-face but also over the telephone or via Skype
The goal of written communication is to spread messages clear and explicit. Written Communication can be: emails, a contract, a memo, a text message or a Facebook Post.
A Distributed Audience means that the audience you are trying to reach is spread over long distances.
To create your own Template in PowerPoint it is best to use the Slide Master. After updating the Slide Master with your design, all slides (fonts, colours, images, …) adapt to those of the Slide Master.