Greenland is a part of North America, even though it is politically and administratively part of the Kingdom of Denmark.

Here's why:

* Geographically: Greenland is located on the North American continental shelf and is geographically closer to North America than Europe.

* Geology: The geological formations of Greenland are similar to those of North America.

While Greenland has a strong historical and political connection to Denmark, its geographical and geological features clearly place it within the continent of North America.