Assertion: ozone | /r/HasProperty | formed
Facets:
value: from ordinary air
type: OTHER
value: naturally
type: MANNER
value: from car exhaust
type: CAUSE
value: from o
type: OTHER
Source sentences:
text: Ozone may be formed from O
text: Where ozone is formed, peak concentrations usually occur during afternoon hours, when sunlight is the most intense.
text: It is formed when oxygen is exposed to a high-energy field causing some oxygen molecules (O2) to break down to oxygen atoms (O).
text: Whenever an electrical spark or corona occurs in air, some ozone is formed.
text: However, once Ozone is formed, it can be put to work as a very aggressive oxidizer and sanitizer.
text: Image above: Ozone is formed when an oxygen molecule is split by an ultraviolet ray and then combined with an oxygen atom.
text: Ozone is a gas that is formed when nitrogen oxides react with a group of air pollutants known as 'reactive organic substances' in the presence of sunlight.
text: Ozone is formed when the sun reacts with VOCs and nitrogen oxides (NOx) in the atmosphere
text: Ozone (O 3 ) is formed when an oxygen molecule (O 2 ) is forced to bond with a third atom of oxygen (O).
text: Ozone is formed naturally when oxygen in the Earth's atmosphere is exposed to strong concentrations of ultraviolet light.
text: Ozone is also formed from car exhaust, which contains nitric oxide (2NO), an unstable nitrogen and oxygen molecule.
text: It is formed when oxygen molecules absorb ultraviolet photons, and undergo a chemical reaction known as photo dissociation or photolysis.
text: When ozone is formed from ordinary air exposed to electrical discharge or ultraviolet light, other toxic gasses, such as nitrogen oxides, are formed as well.