Assertion: formaldehyde | /r/AtLocation | the environment
Facets:
value: naturally
type: MANNER
value: through animal and human metabolic processes
type: MANNER
value: with natural processes
type: CAUSE
Source sentences:
text: Formaldehyde also occurs naturally in the environment.
text: Formaldehyde occurs naturally in the environment with natural processes contributing up to 90 percent of formaldehyde found in the atmosphere.
text: Formaldehyde also occurs naturally in the environment.
text: It can also occur naturally in the environment through animal and human metabolic processes.
text: Formaldehyde also occurs naturally in the environment.