Atmospheric nitrogen is directly replenished in nature through
-
the activities of denitrifying bacteria
- the breakdown of ammonium salts in the soil
- the activities of nitrifying bacteria
- the activities of nitrogen-fixing bacteria in root nodules
- egestion, death and decay
The correct answer is: A
Explanation
The nitrogen in the soil is converted to atmospheric nitrogen by the process of DENITRIFICATION. This is done by the action of denitrifying bacterias eg several species of Pseudomonas.