Passport Reflection Question

The Traveling Nitrogen Passport we finish today was easy. Most people didn't go to the same station in the same order because they roll differently, which means they get to travel to other places by other means.
I went to two stations right after each other. Atmosphere and Soil. I thought me that nitrogen can repeat the cycle in midway. Like for example, a real nitrogen stuck in a coal might be release back into the air but then breathed in by some plant then turned into part of the stem then be turned into a coal in million of years after.
Atmosphere seemed to have the most nitrogens. I think it is because that all of the nitrogen stuck below the atmosphere in form of either liquid, gas, or solid returns back to the atmosphere to start the whole cycle again, only the stations will be different.
I think the point of activity (Traveling Nitrogen Passport) was to let us understand the movement of nitrogens in the air. The stages of nitrogen. The form that all nitrogens could take, and that the nitrogen could repeat the stages a lot of times. Like for example, Surface Water nitrogen gets sucked up by a tree then be turned into a leaf, then falls back into the river, then pressed down by a rock, decompose in water, then repeat the cycle again.