MCQ
Ozone layer is present in the :
- Atroposhere.
- ✓stratosphere.
- Cionosphere.
- Dozonosphere.
✓
Answer
Correct option: B.
stratosphere.
The ozone layer is present in the Stratosphere. Ozone is formed when sunlight breaks down the molecule oxygen $(\mathrm{O}_2)$ in the stratosphere into oxygen atoms $(O).$ The highly reactive oxygen atoms react with more molecular oxygen to form $(\mathrm{O}_3)$.
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