Which of the following gas mainly responsible for ozone layer depletion?
مندرجہ ذیل میں سے کون سی گیس بنیادی طور پر اوزون کی تہہ کی کمی کے لیے ذمہ دار ہے؟
- Chlorofluorocarbon/Freon
- CO2
- Nitrogen oxide
- Sulphur dioxide
Explanation
- Main Cause: Freon / CFCs
- Effect: Breaks down O₃ molecules → more UV-B radiation
- Other Contributors: Halons, carbon tetrachloride
- Result: Skin cancer, cataracts, climate impact
Additional information:
- The Montreal Protocol (1987) aimed to reduce CFC emissions
- Ozone layer protects Earth from harmful ultraviolet rays
Last verified on 16-01-2026
Related MCQs
- Severe damage
- Moderate damage
- Light breeze no damage
- Storm
اس سوال کو وضاحت کے ساتھ پڑھیں
- Sedimentary rock
- Metamorphic rock
- Extrusive igneous rock
- Organic rock
اس سوال کو وضاحت کے ساتھ پڑھیں
- Snake, Grass, Frog, Grasshopper, Eagle
- Grass, Grasshopper, Frog, Snake, Eagle
- Grass, Frog, Grasshopper, Snake, Eagle
- Eagle, Snake, Frog, Grass, Grasshopper
اس سوال کو وضاحت کے ساتھ پڑھیں
- Doctor, Patient, Treatment, Diagnostic, Bill
- Patient, Diagnostic, Doctor, Treatment, Bill
- Bill, Doctor, Patient, Treatment, Diagnostic
- Diagnostic, Patient, Doctor, Bill, Treatment
اس سوال کو وضاحت کے ساتھ پڑھیں
قدیم تہذیبوں اور معاشروں کا مطالعہ کیا کہلاتا ہے؟
- Anthropology
- History
- Archaeology
- None of these
اس سوال کو وضاحت کے ساتھ پڑھیں
Leave a Reply
Your email address will not be published. Required fields are marked *
