Answer:
When creatures produce waste or pass away and are broken down by bacteria and fungus, nitrogen is released back into the soil. By converting nitrate and nitrite into nitrogen gas, bacteria release nitrogen back into the atmosphere (also called denitrification).
Humans are altering the global cycle of N via combustion of fossil fuels, production of nitrogen fertilizers, cultivation of nitrogen-fixing legumes, and other actions
Step-by-step explanation:
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