Final answer:
The correct term for the dispersal of an idea or an item from a central point to more distant locations is 'Spatial Diffusion'. Two forms of spatial diffusion include relocation diffusion and contagious diffusion.
Step-by-step explanation:
The term for the phenomenon characterized by the dispersal of an idea or an item from a central point of origin to more distant locations that are directly or indirectly linked is C) Spatial diffusion. This is a fundamental concept in Geography, and it's essential to understand that spatial diffusion can take various forms, including relocation diffusion and contagious diffusion. Relocation diffusion occurs when people move from their original location while carrying their ideas or attributes with them. Contagious diffusion occurs when a phenomenon such as a disease, technological innovation, or cultural trend spreads from person to person or place to place, much like the spread of a contagious disease.
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