MPSC PYQ

MPSC Rajyaseva 2014 GS Paper 1 — Question 33

The correct answer with a full explanation. Practice this interactively instead →

कोणत्या वायूमुळे मुख्यत्वे ओझोन थराचा हास होतो ? / The main gas responsible for ozone depletion is :

1)कार्बन डाय ऑक्साईड / Carbon dioxide
2)नायट्रोजन डाय ऑक्साईड / Nitrogen dioxide
3)मिथेन / Methane
4)क्लोरो फल्यूरो कार्बन / Chloro fluro carbon✓ Correct

Chlorofluorocarbons (CFCs) release chlorine atoms upon UV exposure, which actively break down ozone molecules in the stratosphere, causing depletion.