Final answer:
Characteristics of science fiction in 'Journey to the Center of the Earth' include advanced and hypothetical technology, exploration of the unknown, and scientific plausibility.
Step-by-step explanation:
The characteristics of science fiction found in 'Journey to the Center of the Earth' include elements such as advanced technology that does not yet exist, exploration of unknown realms, and the use of plausible scientific principles. Considering science fiction often involves aspects like time travel, space exploration, and encounters with phenomena not yet fully understood by science, such as black holes. The novel's plot involves characters venturing into an unexplored territory beneath the Earth's surface, which aligns with the genre's tendency to take readers to new and undiscovered places.