Health Boards


Encyclopedia


My Profile

Health Boad


Health Jobs


Shopping


Health Tools

nitrogen cycle

The global cycle of moving various forms of nitrogen through the air, water, soil, plants, animals of the planet. See nitrogen fixation.


Selected nitrogen cycle links:

© 1997-2006 Healthboard.com.   Healthboard.com is a purely informational website, and should not be used as a substitute for professional legal, medical or technical advice.