Assertion: inorganic arsenic | /r/AtLocation | soil
Facets:
value: naturally
type: MANNER
value: in many kinds of rock
type: LOCATION
value: in ores
type: LOCATION
value: in minerals
type: LOCATION
Source sentences:
text: Inorganic arsenic occurs naturally in soil and in many kinds of rock, especially in minerals and ores that contain copper or lead.
text: Inorganic arsenic naturally occurs in the earth's crust and soil in a wide range of concentrations.