| 1-2 of 2Flashcard sets with a 'nitrogen cycle' term meaning 'the transfer of nitrogen from the atmosphere to the soil, to living organismsm and back to the atmosphere' | |||
|---|---|---|---|
| # | Title | Terms | Date |
| 1 | Cycles in Nature Quizby lilyha7 | 8 terms | April 3, 2008 |
| 2 | Cycles in Natureby shari9601 | 9 terms | May 17, 2008 |