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Concentration of nitrogen in soil air is

This question belongs to Agriculture Soil Science
Soil Science
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Concentration of nitrogen in soil air is

Answer & Solution
Correct Answer: Option C
Our environment is the air around us. Earth’s atmosphere is made up of five main gases, nitrogen, oxygen, water vapour, argon and carbon dioxide.
The concentration of nitrogen in soil air is 78%. And the other major component of air is 21% of oxygen.
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