What is the largest pool of nitrogen in the global nitrogen cycle?

Question

Quizplus · Accepted Answer

The atmosphere contains 78% nitrogen gas, making it the largest pool of nitrogen in the global nitrogen cycle. While nitrogen is also found in terrestrial biomass, oceans, and soil, the majority of it exists in the atmosphere as N2 gas. The other forms of nitrogen are either taken up by plants and organisms or released through natural processes such as denitrification and nitrogen fixation.

What Is the Largest Pool of Nitrogen in the Global