@ShadowFireFox3456 i dunno? Also, the last sentence would be correct if you use "außerdem" not auch. Auch is used when you like.. compare something? For example: Das wasser ist blau, der himmel AUCH" yk? Im pretty sure it csn be used in other types of sentences too, but in this one you gotta use außerdem:
"Außerdem, was macht dieses symbol §?"
And idk think its doing something, its representing something :D so its:
Außerdem, was bedeutet/heißt/.. dieses Symbol §?"