Assertion: stratospheric ozone | /r/CapableOf | form protective layer
Facets:
Source sentences:
text: Called stratospheric ozone, good ozone occurs naturally in the upper atmosphere, where it forms a protective layer that shields us from the sun's harmful ultraviolet rays.
text: Stratospheric Ozone is found 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.