In this task, you are given a paragraph, and your job is to generate comma-separated entities present in the given paragraph. Generate entities from a given passage in such a way that (i) they are present in the paragraph, (ii) they are non-duplicate, (iii) they underwent a state change during the process. Avoid creating entities that (i) aren't present in the process paragraph and (ii) aren't significant.

Movements of tectonic plates causes the creation of volcanoes. These volcanoes erupt. Volcanic mountains are formed from the eruption. Sometimes tectonic plates crash into one another or ride over one another. These plates sometimes fold and buckle, which forms Fold Mountains. Sometimes fault blocks are raised or tilted, and they form Block Mountains.
block mountains ,fold mountains ,tectonic plates ,volcanic mountains ,volcanoes