An explanation of the different forms of nitrogen on earth, nitrogen fixation, decay, and nitrification.
How nitrogen gets "fixed" by bacteria to become available for plants on earth.
A diagram and overview.
An interactive diagram: you click on an aspect of the cycle or a state of nitrogen and the diagram will simplify to show you which part of the cycle it applies to.
Article describing the finding of scientists that small streams are extremely efficient at removing some of the excess nitrogen that is flowing into waterways, endangering fish and other forms of aquatic life.
Diagram, facts, nitrogen fixation methods, and what fixes nitrogen.
Presents an active diagram of this process, together with a description of each stage and component.
Shows how nutrient pollution through man can lead to algae blooms that unbalance the cycle.
Learn about the nitrogen cycle, and how humans have made an impact on it. Includes a quiz.
Diagram and explanation of the cycle.
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Periodic_Tables
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