Final answer:
The stable interior of a continent is known as a craton, which refers to a large and stable part of the Earth's continental lithosphere. Examples of cratons include Laurentia (North America and Greenland) and the Canadian Shield.
Step-by-step explanation:
The stable interior of a continent is known as a craton. A craton is a large and relatively stable part of the Earth's continental lithosphere that has been tectonically inactive for a long period of time. It is composed of ancient rocks and forms the core of a continent.
For example, Laurentia is a craton that consists of most of North America and Greenland. It has retained its integrity since late Proterozoic time and is part of the continent of Laurasia. The Canadian Shield is another example of a craton in North America, characterized by its old rocks and sparsely populated areas.
So in summary, the stable interior of a continent is referred to as a craton, which is a large and relatively stable part of the Earth's continental lithosphere.