MPSC Rajyaseva 2015 GS Paper 1 — Question 34
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खालीलपैकी कोणता वायू पाण्यातील ऑक्चिजनचा क्षय करण्यास सर्वात अधिक कारणीभूत ठरतो? Which of the following gases is primarily responsible for eutrophication of water bodies?
1)नायट्रोजन / Nitrogen✓ Correct
2)सल्फर डायऑक्साईड / Sulphur dioxide
3)कार्बन डायऑक्साईड / Carbon dioxide
4)वरील सर्व / All the above
Nutrient enrichment (eutrophication) causes algal blooms which deplete dissolved oxygen in water bodies. Nitrates and phosphates are primary drivers, but excess organic load and nutrients cause severe oxygen depletion.