Assertion: wetland | /r/CapableOf | provide water filtration
Facets:
Source sentences:
text: Wetlands provide vital ecological services including flood control, fisheries production, carbon storage, water filtration and enhanced disagreement over the relative importance of these factors, although it is probably safe to say that the two major factors now acting are subsidence, mostly from lack of sediment, and salt water intrusion from canals dredged to service oil and gas wells and facilitate oil and gas exploration.