Nitrogen Cycle (6)

Nitrogen cycle reducing environmental pollution (2)

Processes in the nitrogen cycle such as nitrification help to reduce environmental pollution and are applied in green technology to produce compost

Nitrogen cycle

Processes that add nitrate ions to the soil - lightning

Processes that add nitrate ions to the soil - volcanic eruptions

Processes that add nitrate ions to the soil - nitrification

Nitrogen cycle maintaining fertility of soil and increasing productivity of crops

The removal of nitrate ions reduces the fertility of the soil