Occurrence of Attributes in Original Text
The text related to the cultural heritage 'Carlsbad Caverns National Park' has mentioned 'Oxygen' in the following places:
| Occurrence Sentence | Text Source |
|---|---|
| The combination of hydrogen sulfide and oxygen from the water formed sulfuric acid: H2Sxc2xa0+xc2xa02O2xc2xa0xe2x86x92xc2xa0H2SO4. | WIKI |