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nitrogen cycle
This term describes a complex biological and chemical loop rather than a simple linear process. It is primarily used in scientific, academic, and environmental contexts to explain how nitrogen moves through the biosphere, involving specific stages like nitrogen fixation, nitrification, and denitrification.
As a specialized scientific term, it is treated as a singular conceptual entity. While one could theoretically discuss multiple cycles in different planetary environments, in standard Earth science, it is used as a singular noun phrase referring to the global system.
Meanings
Examples
The nitrogen cycle is essential for the production of amino acids in plants.
Do you understand how the nitrogen cycle works in a closed ecosystem?
I wonder if the nitrogen cycle would be disrupted on a planet with no bacteria.
Human activities like over-fertilization can severely disrupt the natural nitrogen cycle.
The teacher explained the various stages of the nitrogen cycle using a colorful diagram.
Nitrogen fixation is the first critical step in the nitrogen cycle.
Without the nitrogen cycle, life as we know it would not exist.
Let us examine how the nitrogen cycle differs between land and ocean environments.