Which statements describe regions?

most regions are homogeneous.
regions are defined by their common characteristics.
regions do not change once their boundaries have been established.
areas can belong to more than one region.
regions are defined by people.
regions have little or no effect upon each other.

Most regions are homogeneous.

Regions are defined by their common characteristics.

Regions do not change once their boundaries have been established.

Explanation:

Regions are subsets of realms. A region is an area of land that is has common characteristics. Regions are identified by the following properties:

radio frequency identification

explanation:

rfid (radio frequency identification) is a form of wireless communication that incorporates the use of electromagnetic or electrostatic coupling in the radio frequency portion of the electromagnetic spectrum to uniquely identify an object, animal or person.

answer; native americans who sometimes actively impeded railroad construction; physical obstacles like rivers and canyons, and