What is a Nitrogen Cycle?
The Nitrogen Cycle represents the constant movement of nitrogen through biological processes. Nitrogen is important to all living things and is present in great quantities in the atmosphere. Organisms consume and use nitrogen then release it back into the atmosphere through waste and decomposing. When it is released back into the atmosphere it can be used again. For more information, look here: http://library.thinkquest.org/11353/nitr…
