A research paper describing the effects of erosion
They're probably looking for false, but to be honest, I use it in my writing sometimes. It depends on the setting and character, or it should be specified as slang in nonfiction writing.
O que até onde a pergunta ou o que sempre
I feel as if it is cultural context as it might be okay to talk about those kind of things in the United States but it is not acceptable in Saudi Arabia as the culture is very conservative compared to the U.S.