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Physical Geography: Nitrogen Cycle
Learn that the nitrogen cycle illustrates how nutrients cycle through a terrestrial ecosystem with the chapter in this free textbook. Explains how nitrogen plays an important role for life. See a diagram of the nitrogen cycle that shows...
Utah Education Network
Uen: Nitrogen Cycle Stream Side Science
Students will learn about the nitrogen cycle through discussion and the construction of a diagram.
BiologyWise
Biology Wise: Understanding Nitrogen Cycle With a Diagram
Describes the steps involved in the nitrogen cycle, a critical biogeochemical cycle.