ही उत्तर पर सही (✓) का निशान लगाइए-
वजन के आधार पर वायुमण्डल में प्रतिशत नाइट्रोजन पाया जाता है-
(क) 60
(ख) 70
(ग) 78
(घ) 90
Answers
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0
Answer:
70 percent nitrogen in earth
Answered by
0
78 percent nitrogen present
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