What is Geography?
I. Study of Spheres
    A. Atmosphere
    B. Lithosphere
    C. Hydrosphere
    D. Biosphere
II. Study of Systems
    A.Definition
    B. Systems we will study
    C. Interactivity of Systems
    D. Solar driven systems
    E. Internally driven systems
III. Study of Interactivity
IV. An Anthopocentric Field