Spatial comes from space which refers to spatial relations between objects. In this question, it is spatial perspective because spatial perspective deals with what you described.
The reason for language diversion is the isolation of the people who speak the same language, but due to diversion and lesser contact between these people, now the language is used only in the dialects.
The geosphere is the sphere over the earth in terms of all the lithos i.e., the water sphere, the ice sphere, and the atmosphere and all the boundaries of this sphere reaching up to the magnetosphere. Thus the geosphere can exchange the different mass and show the energy fluxes.
It may include all the interior of the earth's mineral and landforms and the processes that shape them.
