Which biogeochemical cycle is least dependent on biotic processes?
question 8 options:

carbon

nitrogen

phosphorus

water

Phosphorus  biogeochemical cycle is least dependent on biotic processes

Explanation:

The slowest biogeochemical cycle, the phosphorus cycle  doesn’t have a constant stability in the atmosphere unlike other biogeochemical cycles. Other cycles include- Carbon cycle, nitrogen cycle, water cycle etc.

Phosphorus has it’s cycle through the soil, water and sediment biotic factors. It persists in a small amount in the atmosphere and it has a liquid state in room temperature.  It is a limited cycle for plants and animals.  

desert perennials often survive by remaining dormant during dry periods of the year, then springing to life when water becomes available. most annual desert plants germinate only after heavy seasonal rain, then complete their reproductive cycle very quickly.