Sinkhole

https://www.wikidata.org/wiki/Q188734

Field Hierarchy

Parent
Biology 36.7M papers	Geography 13.4M papers	Geology 10.6M papers	History 8.1M papers
Archaeology 7M papers	Paleontology 5.6M papers	Karst 40.8k papers
Current
Sinkhole 7,755 papers
Child

Trends

Notes

History