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Understanding nitrogen fixation and denitrification is important to explain how nitrogen moves between the atmosphere and soil.
Description
Nitrogen Fixation and Denitrification
Nitrogen fixation converts nitrogen gas from the atmosphere into nitrates usable by plants, occurring through lightning and nitrogen-fixing bacteria. Denitrification is the process where denitrifying bacteria convert nitrates back into nitrogen gas, releasing it into the atmosphere.
- a[1]
Identify two natural ways nitrogen fixation occurs.
Aim for approximately 1 distinct marking point.
- b[2]
Describe the role of denitrification in the nitrogen cycle.
Aim for approximately 2 distinct marking points.
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