About: http://webisa.webdatacommons.org/169190853

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	Silicon dioxide and other compounds that contain silicon and oxygen comprise over 90 percent of Earth's crust.
http://www.w3.org/ns/prov#wasQuotedFrom	prenhall.com