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...rticipate in the Earth's element cycles such as the [[carbon cycle]] and [[nitrogen cycle]], as well as fulfilling other vital roles in virtually all [[ecosystem]]s,

Chris, would you look at the "Nitrogen cycle" section of the [[Air]] article ... and make any revisions you think are ne == The section on "Nitrogen cycle" in the [[Air]] article ==

== EXpansion of the [[Nitrogen cycle]] article == ...t to acknowledge the good work by Thomas Sulcer and you in expanding the [[Nitrogen cycle]] article.[[User:Milton Beychok|Milton Beychok]] 05:42, 18 April 2010 (UTC)

== Your part in expanding the [[Nitrogen cycle]] article. == ...the good work done by you and then by Anthony Sebastian in expanding the [[Nitrogen cycle]] article. [[User:Milton Beychok|Milton Beychok]] 05:38, 18 April 2010 (UTC

*{{pl|Nitrogen cycle}}<br>