About: http://webisa.webdatacommons.org/211475845

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 distribution of pH in the oceans, its changes with depth, tide, and other physical and biological processes, and the impact of the changes on organisms were studied early in the 20th century.
http://www.w3.org/ns/prov#wasQuotedFrom	scienceblogs.com