The Nutrient Cycle and Biogeochemical Cycle
- The Carbon Cycle never stop and always will be a continous process. It involves the desert plants absorbing carbon dioxide together with sunlight and water in the process called photosynthesis to make food and carbon rich compounds.
- The Water Cycle involves change of heat and temperature, this cycle describe the movement of the water in the Earth superfice.THis cycle also reshaping the geological features of the Sahara Desert and the whole Earth, through such processes as erosion and sedimentation. Finally, the water cycle figures significantly in the maintenance of life and ecosystems on Earth.
- The Nitrogen cycle involves denitrification is conversion of nitrate to nitrous oxide and nitrogen gas back to atmosphere. This is done by denitrifying bacteria in both aquatic and terrestrial ecosystems. The process of denitrification almost, but not completely, counterbalances nitrogen fixation.
- The Phosphurus Cycle involves a mineral apatite that contains a small amount of phosphorous, although this is enough for all living things to utilize. Runoff returns phosphates to aquatic systems and sediment.