Study some of these diagrams.
http://www.google.com/images?hl=en&rlz=1G1GGLQ_ENUS374&q=nitrogen+cycle&um=1&ie=UTF-8&source=univ&ei=3bIzTI2qCYKB8gb2s5XJCw&sa=X&oi=image_result_group&ct=title&resnum=1&ved=0CCUQsAQwAA
http://www.google.com/images?hl=en&rlz=1G1GGLQ_ENUS374&q=phosphorus+cycle&um=1&ie=UTF-8&source=univ&ei=BrMzTJ3_D8L78AauqeDICw&sa=X&oi=image_result_group&ct=title&resnum=1&ved=0CCEQsAQwAA
KK I know that the Nitrogen cycle is the way that nitrogen in nature is changed into many different forms that are used by living organisms, but I have to explain how the phosphorus cycle differs from that cycle, and I don't know about that. Is it possible for you to provide me with a simple explanation on how they both differ from each other?
2 answers
The only difference I got is that it doesn't usually have a gas state.