Geography
What this domain tests
Geography tests spatial reasoning: location, place, human–environment interaction, movement, and region. Expect map skills, population patterns, economic activity, migration, and how physical systems shape human choices.
Core rules
- Scale matters. A neighborhood, state, and global map reveal different patterns; explain why the scale changes the conclusion.
- Projections distort. Mercator preserves direction and shape for navigation but inflates high-latitude area. Equal-area projections preserve area but distort shape. Choose by purpose.
- Regions are constructed. Formal regions share a measurable trait; functional regions are organized around a node; perceptual regions reflect mental maps.
- Population geography. Population pyramids show age and sex structure; the demographic transition links birth and death rates to development, but the model is not a universal law.
- Human–environment. Climate, soils, water, and hazards constrain and enable settlement; humans also modify systems through irrigation, urbanization, and deforestation.
- Diffusion. Relocation, expansion, contagious, and hierarchical diffusion describe how phenomena spread.
Worked example
Prompt: A publisher needs a world map for a textbook chapter on global population density. Should it use Mercator? Reasoning: Mercator exaggerates the area of high-latitude regions, making Greenland look comparable to Africa, so it misleads about density and land area. An equal-area projection, such as an Eckert or Mollweide projection, represents area more faithfully, though shapes distort. The purpose-comparing population per square kilometer-determines the choice.
Traps
Treating a map as neutral; confusing weather with climate; assuming latitude alone explains climate; using the demographic transition as a rigid stage model; and forgetting that migration has both push and pull factors.