What does science fiction and non mean?

Science fiction is a genre of fiction that deals with imaginary worlds and technologies. It is often set in the future, but can also be set in the past or present. Science fiction stories often explore the potential consequences of scientific and technological advances, and can be used to comment on social and political issues.

Non-fiction is a genre of writing that deals with real events, people, and places. It can include biographies, autobiographies, essays, and news articles. Non-fiction writing is typically written in an objective style, and does not express the author's personal opinions or beliefs.