Geography
Defaults: IQ-6 and others.
This is the study of the physical, political, and economic divisions of a planet, and how they interact. It is part physical science, part social science. You must specialize:
Physical: The study of the physical properties of a planetary surface. A physical geographer could answer questions about climate, terrain, and so forth. You must further specialize by planet type; see [Planet Types]]. Defaults: Geology (same planet type)-4 or Meteorology (same planet type)-4.
Political: The study of political regions – their borders, natural resources, industries, etc. A political geographer could answer questions about land claims, overpopulation, regional economic disparities, transportation networks, etc. Default: Economics-4.
Regional: The study of all of the above, but specific to a single region: New York, the United States, planet Earth, etc. The depth of knowledge decreases with the size of the region (see Area Knowledge). Default: Area Knowledge (relevant)-6.
These specialties default among themselves at -5.