About: http://webisa.webdatacommons.org/423320007

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 optimum level of CO2 for C3 plants (trees, scrubs, cereals, almost all plants except for grasses which have evolved to survive in very, very, low CO2 is 1000 ppm to 1200 ppm.
http://www.w3.org/ns/prov#wasQuotedFrom	wattsupwiththat.com