The used rhetorical device is Hyperbole.
Saying that something is a billion times better is hyperbole because it is not really that much better, you would just be over exaggerating.
Answer:
Communication Gap is when the meaning intended by the speaker or sender is not what is understood by the recipient. There might be several reasons for communication gaps to arise in the workplace
Btw can you answer my question. I have been waiting for an hour.
The correct sentence is "facts and opinions are not necessarily in opposition". That is so because one can agree with a fact.
On the other hand "fact" may not be a synonym of "opinion". In research you can use "facts", "opinions" or both. It is so because one does not exclude the possibility of using the other. They are not necessarily anthonyms/ opponents. an opinion is not more important than a fact, but on the contrary, because facts can be proved easier than opinions.
