Here's why:

* Region: A region is a geographical area that shares common features, such as climate, culture, language, or economic activity. These unifying characteristics distinguish a region from its surrounding areas.

Some examples of regions:

* The Great Plains: A region defined by its flat, grassy landscape.

* The Middle East: A region defined by its shared culture, history, and religion.

* Silicon Valley: A region defined by its concentration of technology companies and innovation.