What does physical geography primarily focus on?

Physical geography primarily focuses on the branch of geography that deals with natural features and processes. This area of study encompasses various aspects such as landforms, climates, ecosystems, and geological processes. Understanding these natural elements is critical for analyzing how they interact with human activities and how they can change over time due to both natural events and human influence.

Other domains like human geography would address aspects such as human-induced changes in the environment and the distribution of human populations, which do not fall under the main focus of physical geography. Animal behavior in natural habitats, while relevant to biological studies, is also not the primary concern of physical geography, which centers more on the physical attributes and processes of the Earth itself. Thus, option C accurately captures the essence of physical geography’s focus.