Chemistry
Grade-6
Easy
Question
The process by which atmospheric nitrogen is converted into nitrates and fixed in the soil is known as
- Nitrogen fixation
- Nitrogen reduction
- Anerobic oxidation
- Reduction
Hint:
Only prokaryotic organisms can reduce atmospheric N2 to ammonia because they have an enzyme known as nitrogenase which is found exclusively in them. There are many bacteria that reduce nitrogen found in soil as free forms or as symbionts.
The correct answer is: Nitrogen fixation
The process by which atmospheric nitrogen is converted into nitrates and fixed in the soil is known as Nitrogen fixation.
The bacteria which convert atmospheric nitrogen into nitrogen compounds are known as nitrogen-fixing bactera.
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