1.   After a short time the oxygen and the nitrogen molecules will start to mix.

2.   Cerveny said lightning does have beneficial aspects, such as splitting nitrogen molecules from oxygen molecules and fixing the nitrogen into the soil.

3.   Just as some bacteria can draw nitrogen from the atmosphere and expel it as nitrates, others can consume nitrates and expel nitrogen molecules back into the air.

4.   The electrons bang into nitrogen molecules, which give off energy in the form of light, most of which is red.

5.   When the energized electrons plow into a nitrogen molecule, the molecules give off light.