Final answer:
Apocalyptic literature is characterized by its heavy use of figurative language, which is used to depict complex themes such as divine intervention and salvation.
Step-by-step explanation:
The characteristic of apocalyptic literature is Figurative language. Apocalyptic writing often uses symbolic imagery and metaphorical language to convey themes of divine judgment, salvation, and the ultimate battle between good and evil. Such texts also typically include features like heavenly messengers, eschatological (end-times) visions, divine interventions, and climactic battles, often highlighting the theme of salvation as reflected in biblical and religious contexts.