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प्रश्न
The Ozone Layer thins down as a result of a chain chemical reaction that separates from the layer
पर्याय
Oxygen
Chlorine
Nitrogen
Hydrogen
MCQ
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उत्तर
The Ozone Layer thins down as a result of a chain chemical reaction that separates from the layer Chlorine
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General Science and Technology Current Affair (Entrance Exam)
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