regions don't have defined boundaries
opinions about regions
There are a few different ways that regions are formed. Regions are formed based on boundaries that are placed based on population for example.
No, there is a lot of overlap.
congress
convergent plate boundaries
There are very rarely distinct boundaries where a region abruptly changes.
divergent plate boundaries
Political boundaries are the boarders of a country. Geographic regions are like deserts, tundra, and grasslands.
Geographical boundaries are natural or artificial lines that separate different areas or regions on the Earth's surface. They can be defined by physical features like mountains, rivers, or coastlines, as well as through legal agreements between countries. Geographical boundaries help to establish territories, jurisdictions, and limits for governance and resource management.
A "geopolitical" map.
earthquakes usually occur at tectonic plate boundaries
Bedrock structure and elevation