About: http://webisa.webdatacommons.org/362356644

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	These contain isotopes, such as carbon-14 and beryllium-10, created when high-energy particles from deep space, called cosmic rays, slam into the atmosphere.
http://www.w3.org/ns/prov#wasQuotedFrom	blogspot.com