PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • As carbon dioxide is absorbed in the oceans, the sea water becomes more acidic or lower in pH. These changes in ocean chemistry affect marine life, particularly organisms with calcium carbonate skeletons or shells, such as corals, oysters, mussels, and small creatures in the early stages of the food chain such as pteropods.
http://www.w3.org/ns/prov#wasQuotedFrom
  • calacademy.org