In which geochemical cycle does the most abundant nutrient in earth's atmosphere appear in its gaseous form?

Nitrogen cycle does the most abundant nutrient in earth's atmosphere appear in its gaseous form. In order organisms make protein, it requires nitrogen. Certain types of bacteria can directly use nitrogen. Nitrogen fixation is the process of turning ammonia into nitrogen.

compost can be added to topsoil as a:

pesticide

it would be rhyolitic hope this