Rangers also provide protection for the resources of the park, and to the people who visit the parks. These rangers perform law enforcement, search and rescue, firefighting duties, and emergency medical services. There are Rangers that work in the park campgrounds, collect fees at park entrance stations, perform research in the park, and so many other jobs. Biologists, historians, and archaeologists might be others who wear the same uniform. There are no education requirements for becoming a ranger, except having a high school diploma.
Many Rangers have college degrees in a variety of fields.
I suggest going to college and getting a degree. If you want to work in natural resources, geology, biology, ecology, wildlife management majors may be useful. For law enforcement, a criminal justice degree might help. My major was in Park Administration, which is a broad degree on park's management. Rangers have communications, law, history, business, and types of other degrees.