About: http://webisa.webdatacommons.org/299568133

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	Regional differences exist for many chemicals, such as fertilizers and pesticides.
http://www.w3.org/ns/prov#wasQuotedFrom	usgs.gov