About: http://webisa.webdatacommons.org/338849509

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	The harmony in the concentration of such substances as nickel and iron in liquid form within the core of the earth renders possible the function of the Van Allen belts.
http://www.w3.org/ns/prov#wasQuotedFrom	blogspot.com