Assertion: butterfly's population | /r/CapableOf | decline by approximately 90%
Facets:
value: since the 1990s
type: TEMPORAL
value: due to pesticides
type: CAUSE
value: according to the nwf
type: OTHER
value: due to agriculture
type: CAUSE
Source sentences:
text: According to the NWF, the population has declined by approximately 90% due to agriculture and pesticides that kill both the milkweed that monarchs need to survive and monarchs themselves.
text: The monarch population has declined by approximately 90 percent since the 1990s.