Final answer:
Science fiction is the genre that contains supernatural or futuristic elements.
Step-by-step explanation:
In literature, the genre that contains supernatural or futuristic elements is science fiction. Science fiction stories often revolve around science and technology that do not yet exist and may never exist, but are based on plausible principles. These stories can be set in the future, on a changed Earth, or explore aliens, life on other planets, parallel worlds, or time travel.