Sinkhole

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

Field Hierarchy

Parent
Biology 36M papers	Geography 13.2M papers	Geology 10.4M papers	History 8M papers
Archaeology 6.9M papers	Paleontology 5.5M papers	Karst 40k papers
Current
Sinkhole 7,664 papers
Child

Trends

Notes

History