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Nitrogen Cycle. Nitrogen Cycle. Simplified N cycle “A few basic steps”. Biological N fixation. Positive and Negative Affects. Carbon Cycle “ Simple but many contributors”. Global carbon cycle. 221.5 into atmosphere 215 out of atmosphere ( 6.5 ). 7.5. 760. 40,000.
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Simplified N cycle “A few basic steps”
Carbon Cycle “Simple but many contributors”
Global carbon cycle 221.5 into atmosphere 215 out of atmosphere (6.5) 7.5 760 40,000 Pg=1015 g