2.5 Water Cycle & the Biogeochemical Cycles

• Water Cycle and Biogeochemical Cycles:

  1. Hydrologic Cycle
  2. Carbon Cycle
  3. Nitrogen Cycle
  4. Phosphorus Cycle
  5. Sulfur Cycle
• Hydrological Cycle; the water cycle is the complex and involves state changes in water as well as the physical movement of water through and between ecosystems
• Carbon Cycle; Carbon functions as structural component of organic molecules and a chemical bond in carbon compounds provide metabolic energy
• Nitrogen Cycle; Nitrogen is mostly found in the atmosphere as nitrogen gas, and it is processed via nitrogen fixation
• Phosphorus Cycle; the slowest cycle among the biogeochemical cycles
• Sulfur Cycle; sulfur plays a vital role in organisms, especially as a minor but essential component of proteins. Sulfur compounds are important determinants of the acidity of rainfall, surface water, and soil.