Nitrogen gas is an industrial gas produced by the fractional distillation of liquid air or by mechanical means using gaseous air. Commercial nitrogen is often a byproduct of air-processing for industrial concentration of oxygen.
The nitrogen cycle describes the movement of the element from the air into the biosphere and organic compounds and back into the atmosphere. Synthetically produced nitrates are key ingredients of industrial fertilizers and key pollutants causing the eutrophication of water systems.
Explanation:
ewan q po qung tama sagot qo
