Vayumandal Me Nitrogen Ka Pratishat Lagbhag Hai A 21 B 88 Si 52 D 78 वायुमंडल में नाइट्रोजन का प्रतिशत लगभग है ए 21% बी 88% सी 52% डी 78%

वायुमंडल में नाइट्रोजन का प्रतिशत लगभग है ए 21% बी 88% सी 52% डी 78%

Prince Kaushik on 09-09-2014

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