Occurrence of Attributes in Original Text

The text related to the cultural heritage 'Mount Etna' has mentioned 'Earth' in the following places:
Occurrence Sentence Text Source
Initially, such efforts consisted of the construction of earth barriers built perpendicularly to the flow direction; it was hoped that the eruption would stop before the artificial basins created behind the barriers would be completely filled.
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.