Answer:
Always encrypt data never store anything in plain text someone could use wireshark to pull out a data packet and if the data is not encrypted, expect things to happen.
You could Do Ctrl + F5 to present your google slides
You could Animate Objects/Units by one of the drop down menus in google slides
You could add a link by copying the link you want to put in by highlighting the link, pressing Ctrl + C (to copy) and Find where you would like to place it and press Ctrl + V
(To Paste)
If you press on a google slide and do not do anything else, at the top it should say theme Or background, there you could select a image from your device or a solid color or Gradient of a color for your background.
