nitrogen cycle

nitrogen cycle
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  • The Nitrogen Cycle
  • Nitrogen starts in the atmosphere...
  • ...and become NH3
  • ...but bacteria helps it undergo nitrogen fixation...
  • From there, the nitrogen either goes into the plants through assimilation...
  • NH3
  • ...or ends up in rivers and lakes through irrigating runoff.
  • This causes eutrophication in these waters.
  • NH3
  • But, when humans add fertilizers to the runoff...
  • NH3
  • ...it speeds up the process of eutrophication.
  • This can cause all other life in the river or lake to DIE!
  • The End
  • Help the fish live long and healthy lives. Don't use excess fertilizers.
  • Don't let this happen.
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