Given the task definition and input, reply with output. Given a scientific passage and an answer, generate a question for the given answer.

Passage: Most scientists agree that the Earth itself is not a living thing. However, the Earth does have some aspects of life. Some scientists argue that the Earth maintains homeostasis, a stable state, just like a living organisms. Answer: homeostasis
The earth is like organisms in that it maintains a stable state, which is also known as what?