Correct Answer:
B. Petrology
The correct answer is Petrology. Petrology is a specialized branch of geology that focuses specifically on the scientific study of rocks. This field investigates the origin, composition (mineral and chemical makeup), texture (size, shape, and arrangement of mineral grains), and structure of rocks. Petrologists classify rocks and study the processes that form and transform them, providing crucial insights into Earth's geological history and processes.
- Geology is the broader science of Earth, encompassing the study of rocks, but also Earth's physical structure, processes, and history. Petrology is a sub-discipline of geology.
- Penology is an unrelated field concerned with the study of punishment and prison management.
- Petrogenesis refers specifically to the origin and formation of rocks, which is a key aspect studied within petrology, but not the entire scientific discipline itself.