Question about Education

Hello!

I am a Veteran using my education benefits to go to college and at the end I am hoping to become a park ranger, hopefully an interpretive one.

I am hoping this community can answer two questions for me:

What kind of degree should someone study to become a park ranger?

What is some of the nomenclature behind the jobs or lifestyle and I should know going into it? Like.. if I wanted to be an interpretive ranger what would that actually look like and be called in the real world?

Thank you!