Assertion: heavy metal | /r/AtLocation | the earth
Facets:
value: naturally
type: MANNER
Source sentences:
text: Heavy metals are found naturally in the earth.
text: In a nutshell, heavy metals are dense metallic or semi-metallic elements naturally occurring in the earth.
text: Heavy metals are found naturally in the earth, and become concentrated as a result of human activities, or, in some cases geochemical processes, such as accumulation in peat soils that are then released when drained for agriculture.
text: Heavy metals are found naturally in the earth
text: Heavy metals are found naturally in the earth