Occurrence of Attributes in Original Text

The text related to the cultural heritage 'Mount Etna' has mentioned 'World' in the following places:
Occurrence Sentence Text Source
Mount Etna is one of the world's most active volcanoes and is in an almost constant state of activity.
Criterion (viii): Mount Etna is one of the worldxe2x80x99s most active and iconic volcanoes, and an outstanding example of ongoing geological processes and volcanic landforms.
This exceptional volcanic activity has been documented by humans for at least 2,700 years xe2x80x93 making it one of the world's longest documented records of historical volcanism.
Today Mount Etna is one of the best-studied and monitored volcanoes in the world, and continues to influence volcanology, geophysics and other earth science disciplines.