denitrification

/diːˌnaɪtrɪfɪˈkeɪʃən/
noun
  1. The process by which bacteria convert nitrates in soil or water into nitrogen gas, releasing it into the air.
    • Farmers manage denitrification to prevent too much nitrogen from leaving the soil.
    • Wetlands are important for denitrification, which cleans the water naturally.
    • Denitrification helps return nitrogen to the atmosphere, completing the nitrogen cycle.
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