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Which of the following are true regarding the nitrogen cycle? Select ALL that apply.

A

The atmosphere is largely composed of nitrogen, making it the largest pool of nitrogen readily available and usable for life's diversity.​

B

Decomposition of plants and animals by bacteria or fungi convert the organic nitrogen within the dead organisms into ammonium.

C

Human activities have little to no effect on the nitrogen cycle.

D

An increased input of biologically available nitrogen into coastal waters can result in eutrophication.

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