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Phosphorus Cycle

Carbon Cycle

Carbon goes through:

-biosphere

-geosphere

-hydrosphere

-atmosphere.

Nitrogen Cycle

The movement of chemical compounds or elements between living organisms and the environment

There are four steps in the nitrogen cycle:

1) Nitrogen fixation- bacteria makes nitrogen

2) Mineralization- the ammonia formation

3) Nitrification- convert ammonia to nitrites/nitrates

4) Denitrification-change of nitrates to nitrogen

Water Cycle

Main Sources of Nitrogen:

-animals

-air

-rocks

-fertilizers

Biogeochemical Cycle

Work Cited:

http://www.thefreedictionary.com/biogeochemical+cycle

http://upload.wikimedia.org/wikipedia/commons/1/19/Watercyclesummary.jpg

http://www.meritnation.com/img/shared/discuss_editlive/1084373/2012_02_09_15_07_29/image3353714566910658742_8813695257420311632.jpg

http://3.bp.blogspot.com/-OzEe7JgiGcU/TlxKM5D7bPI/AAAAAAAABUU/htSItEHSXm0/s1600/Phosphorus+cycle+with+peeing+dude.png

http://tolweb.org/tree/ToLimages/Nitrogen_Cycle.500a.jpg

http://www.elmhurst.edu/~chm/onlcourse/chm110/outlines/nitrogencycle.html

http://www.cotf.edu/ete/modules/carbon/efcarbon.html

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