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UGC NET
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Env
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2021 Q36
UGC NET 2021
December
Morning
Q36
AR
answer key
explanation soon
medium
Env
· Pollution
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December / Morning
2021 Q36
Which of the following is an ozone depleting substance?
Chromium
Iron
Wastewater
Toxicity
Heavy Metals
Next question · 2021 Q36