Assertion: ozone | /r/HasProperty | created in nature
Facets:
value: from oxygen
type: CAUSE
Source sentences:
text: Ozone at the ground level is created in nature by the interaction of sunlight with certain chemicals that are released to the environment, including vehicle and industrial plant emissions.
text: Ozone (O3) is created from Oxygen (O2) in nature and also in Ozone Generators for commercial or industrial applications.
text: Ozone (O3) is created from Oxygen (O2) in nature and in ozone generators for commercial or industrial applications, however Ozone (O3) quickly reverts back to molecular Oxygen (O2).