About: http://webisa.webdatacommons.org/415750309

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	Acid rain is a serious environmental problem caused by a mixture of wet and dry deposition (deposited material) from the atmosphere that contains higher than normal amounts of nitric and sulfuric acids.
http://www.w3.org/ns/prov#wasQuotedFrom	healthfinder.gov