I want to know the answer to the following question:
What are the four categories of terra nullius?
All the background I'm provided with is that "In the last three of these, international treaties (the Antarctic Treaty, the United Nations Convention on the Law of the Sea, and the Outer Space Treaty respectively) prevent colonization and potential statehood of any of these uninhabited (and, given current technology, not permanently inhabitable) territories.". Is that enough to answer the question?
Answer: no