Bio-Geo-Chemical

Cycle

Presented by– Kamlesh chandravanshi

Guided by– Mr. luv verma

Atal Bihari vajpayee government college pandatrai

Bsc 3rd year

Zoology

Bio-Geo-Chemical cycle

• Introduction
• Definition
• Cycling elements
• Types of Bio-Geo-Chemical cycle

​

​

​

• Gaseous
• Sedimentary

• Conclusion
• Reference

Oxygen cycle

1. Reservoir:

Atmosphere as o2; water as H20, and other organic compounds.four main reservoirs: terrestrial biosphere (green), marine biosphere (blue), lithosphere (brown), and atmosphere (grey). The major fluxes between these reservoirs are shown in colored arrows, where the green arrows are related to the terrestrial biosphere, blue arrows are related to the marine biosphere, black arrows are related to the lithosphere, purple arrow is related to space (not a reservoir, but also contributes to the atmospheric O2)

*Oxygen cycle*

• Atmosphere:

The atmosphere is 20.9% oxygen by volume, which equates to a total of roughly 34 × 1018 mol of oxygen.[2] Other oxygen-containing molecules in the atmosphere include ozone (O3), carbon dioxide (CO2), water vapor (H2O), and sulphur and nitrogen oxides (SO2, NO, N2O, etc.).

​

• Biosphere: The biosphere is 22% oxygen by volume present mainly as a component of organic molecules (CxHxNxOx) and water molecules.

*Oxygen cycle*

• Hydrosphere: The hydrosphere is 33% oxygen by volume[citation needed] present mainly as a component of water molecules with dissolved molecules including free oxygen and carbonic acids (HxCO3).

*Oxygen cycle*