Question : The major constituent of air is
Option 1: Nitrogen
Option 2: Carbon dioxide
Option 3: Oxygen
Option 4: Hydrogen
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Correct Answer: Nitrogen
Solution : The correct option is Nitrogen.
Nitrogen is the most abundant element in the atmosphere (78%). This is inert, essential for life, a component of the nitrogen cycle, a diatomic gas that maintains atmospheric pressure and is employed in agriculture and industry.
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