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Which of the following are true regarding the nitrogen cycle? Select ALL that apply.
The atmosphere is largely composed of nitrogen, making it the largest pool of nitrogen readily available and usable for life's diversity.
Decomposition of plants and animals by bacteria or fungi convert the organic nitrogen within the dead organisms into ammonium.
Human activities have little to no effect on the nitrogen cycle.
An increased input of biologically available nitrogen into coastal waters can result in eutrophication.