What are the main substances involved in biogeochemical cycles?
GeneralClass 12AllAnswered 27 Mar 2026
Answer
Biogeochemical cycles primarily involve essential elements and compounds that move through Earth's living and non-living systems. The main substances include carbon (cycling through the atmosphere as CO₂, in living organisms, and in geological formations), nitrogen (moving between atmospheric N₂, soil compounds, and living tissues), oxygen (exchanged through respiration and photosynthesis), phosphorus (cycling through rocks, soil, and organisms), and water (moving through evaporation, precipitation, and biological processes). These cycles are fundamental to sustaining life, as they ensure the continuous availability of nutrients necessary for all biological processes while maintaining environmental balance.
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