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The Nitrogen Cycle

78% Nitrogen Gas in Atmosphere. The Nitrogen Cycle. Denitrification : Bacteria returns nitrogen gas to the atmosphere. Nitrogen Fixation Bacteria turns Nitrogen gas (N 2 ) into a useable form for plants & animals. Animals eat plants that contain nitrogen. Death and decay.

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The Nitrogen Cycle

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  1. 78% Nitrogen Gas in Atmosphere The Nitrogen Cycle Denitrification: Bacteria returns nitrogen gas to the atmosphere Nitrogen Fixation Bacteria turns Nitrogen gas (N2) into a useable form for plants & animals Animals eat plants that contain nitrogen Death and decay Animals excrete waste contain nitrogen

  2. The Nitrogen Cycle

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