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New page: '''Ozone shield''' is a layer of the atmosphere composed of ozone gas (O3) that resides approximately 25 miles above the Earth's surface and absorbs solar ultraviolet radia...
'''Ozone shield''' is a layer of the [[atmosphere]] composed of [[ozone]] [[gas]] (O3) that resides approximately 25 miles above the [[Earth]]'s surface and absorbs solar ultraviolet radiation that can be harmful to living organisms.
[[category:environment]]
[[category:environment]]