About: http://webisa.webdatacommons.org/175250233

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	Given the present rate at which salt and other materials are being washed into the ocean, if the earth is billions of years old, what should be the concentration of salt in the earth's oceans?
http://www.w3.org/ns/prov#wasQuotedFrom	pbnation.com