Final answer:
Karst geology refers to a type of landscape formed from the dissolution of soluble rocks, such as limestone. It is characterized by unique geological structures, including caves, sinkholes, and underground rivers. These features are hazardous to humans due to the potential for sinkhole formation and the instability of the rock formations.
Step-by-step explanation:
Karst geology refers to a type of landscape formed from the dissolution of soluble rocks, such as limestone. It is characterized by unique geological structures, including caves, sinkholes, and underground rivers. These features form when water reacts with the limestone, creating chemical reactions that dissolve and erode the rock over time. They can be hazardous to humans due to the potential for sinkhole formation, where the ground collapses, and the instability of the rock formations.