Biological Science (7th Edition)
Biological Science (7th Edition)
7th Edition
ISBN: 9780134678320
Author: Scott Freeman, Kim Quillin, Lizabeth Allison, Michael Black, Greg Podgorski, Emily Taylor, Jeff Carmichael
Publisher: PEARSON
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Chapter 53, Problem 1TYK

What is the main global reservoir of nitrogen?

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Summary Introduction

To review:

The main global reservoir of nitrogen (N2).

Introduction:

Nitrogen is a gas that is naturally present in the atmosphere. It makes up 78% of the atmosphere, which is the highest among all the gases. It is also present in the combined form in amino acids in the plants and animals. Nitrogen occurs as ammonium (NH4) and nitrate (NO3) salts in the soil, and as nitrogen dioxide (NO2) and nitrogen monoxide (NO) in the atmosphere.

Explanation of Solution

The major reservoir of N2 is the atmosphere. N2 circulates between the atmosphere, lithosphere, and hydrosphere with the combined action of nitrogen-fixing bacteria, lightning, and industrial nitrogen. The combustion of oxygen takes place at a controlled rate in the presence of nitrogen.

Conclusion

Thus, the atmosphere is the main global reservoir of nitrogen (N2).

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