The nitrogen cycle diagram explains how nitrogen moves through the atmosphere, soil, and living organisms, highlighting key processes and microbial roles.
Diagram illustrating the nitrogen cycle, showing processes like nitrogen fixation, ammonification, nitrification, and denitrification, with labeled components such as N₂, NH₄⁺, NO₂⁻, and NO₃⁻, and organisms like nitrogen-fixing bacteria and nitrifying bacteria.