The vast majority of atmospheric ozone resides within the _____________?
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Answer: C. Stratosphere
Explanation
The stratosphere contains the vast majority of atmospheric ozone within the protective ozone layer. This atmospheric layer absorbs harmful ultraviolet radiation emitted by the Sun. Ozone concentration peaks in this region due to photochemical reactions involving solar energy. The stratosphere is situated directly above the troposphere and extends up to fifty kilometers. Temperature increases with altitude in the stratosphere because ozone absorbs solar ultraviolet light. Ozone molecules consist of three bonded oxygen atoms forming an unstable gas compound.
The stratospheric ozone layer shields terrestrial life from damaging ultraviolet radiation mutations. International agreements like the Montreal Protocol successfully banned ozone-depleting chlorofluorocarbons. Atmospheric scientists monitor stratospheric ozone levels continuously using satellite instruments. Mesosphere lies above the stratosphere and contains very low concentrations of atmospheric ozone. Troposphere is the lowest weather layer where ozone acts as a harmful surface pollutant. Ionosphere is located much higher in the upper atmosphere and plays no role in the ozone layer.
- Subject
- Everyday Science
- Category
- Everyday Science
- Topic
- —
- Difficulty
- medium
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