All of the above in the question can be used to define a region.
A region can be defined as an area of land that has specific similarities and features in common.
A region has characteristics that are the same across all parts. Some of these characteristics are:
- They have similar types of soil
- The available jobs are the same across the region
- The climate of the region is the same for all places.
- they have similar languages, religion
- The system of Government is the same.
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