Final answer:
The address '123 Main Street, Anytown, CA 91234' is an example of a physical address, which identifies a geographic location within various larger geographic regions for purposes like mail delivery.
Step-by-step explanation:
The address '123 Main Street, Anytown, CA 91234' is an example of a physical address. Physical addresses refer to specific locations on the Earth's surface and are used for a variety of purposes, such as postal delivery or identifying where someone lives or a business is located. Unlike an email address, an IP address, or a URL, a physical address defines a geographic point situated within various geographic regions, such as a zip code, city, county, state, and country. In the United States, the property address system was developed to assist the postal service in delivering mail efficiently, and it reflects a logical structure with which most Americans are familiar. As an address that references a location in the real world as opposed to a digital space, it clearly falls under what is recognized as a physical address.