Here's why:

* Monolith: A large, single mass of rock, often standing alone and prominently. Uluru perfectly fits this description.

* Inselberg: While sometimes used, this term is more general and refers to any isolated rock formation rising above a plain. Uluru is a specific type of inselberg, a monolith.

It's important to remember that Uluru is a sacred site to the Anangu people, the traditional custodians of the land. Using respectful language and understanding its cultural significance is crucial.