ಗಾಳಿಯಲ್ಲಿ ಸಾರಜನಕದ ಶೇಕಡಾ? A. 74% B. 76% C. 78% D. 80%

Dry air is about 78% nitrogen, 21% oxygen and about 1% argon, with small amounts of carbon dioxide and other gases.