About: http://webisa.webdatacommons.org/145747706

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	If the water, in these processes, picks up a substantial amount of invisible dissolved rock, calcium carbonate and other substances, it becomes ???hard??? a defined term.
http://www.w3.org/ns/prov#wasQuotedFrom	saltinstitute.org