Assertion: ozone | /r/AtLocation | earth's upper atmosphere
Facets:
value: at ground level
type: LOCATION
value: naturally
type: MANNER
value: above the earth's surface
type: LOCATION
Source sentences:
text: Ozone occurs both in the Earth's upper atmosphere and at ground level.
text: Ozone occurs naturally in the Earth’s upper atmosphere (the stratosphere), where it shields the Earth from the sun’s ultraviolet rays.
text: Ozone is a gas that occurs both in the Earth's upper atmosphere and at ground level.
text: Ozone occurs both in the Earth's upper atmosphere and at ground level.
text: Ozone occurs naturally in the Earth's upper atmosphere - 6 to 30 miles above the Earth's surface - where it forms a protective layer that shields us from the sun's harmful ultraviolet rays.
text: Ozone occurs both in the Earth's upper atmosphere and at ground level.