Water Cycle Hydrosphere- water of Earth’s surface Water Cycle- movement of water in the hydrosphere, driven by sunlight

Hydrological Cycle

Biochemical Cycles Oxygen Carbon Nitrogen Phosphorous

Nitrogen & Carbon Cycle

Nitrogen Cycle Describes the transformations of nitrogen and nitrogen-containing compounds in nature. It is a cycle which includes gaseous components.nitrogengaseous Earth's atmosphere is about 78% nitrogen, making it the largest pool of nitrogen.Earth's atmospherenitrogen Nitrogen is essential for many biological processes; it is crucial for any life here on Earth. It is in all amino acids, is incorporated into proteins, and is present in the bases that make up nucleic acids, such as DNA and RNA.amino acids proteinsnucleic acidsDNARNA

Nitrogen Cycle Movement of Nitrogen between atmosphere, bacteria and other organisms

Oxygen Cycle the movement of oxygen within and between its three main reservoirs:oxygen atmosphere (air),atmosphere biosphere (living things)biosphere lithosphere (Earth's crust).lithosphere The main driving factor of the oxygen cycle is photosynthesis, which is responsible for the modern Earth's atmosphere and life.photosynthesis

Oxygen Cycle

Carbon Cycle The cycle is usually thought of as four major reservoirs of carbon interconnected by pathways of exchange. These reservoirs are: The atmosphere. The terrestrial biosphere, which is usually defined to include fresh water systems and non- living organic material, such as soil carbon. The oceans, including dissolved inorganic carbon and living and non-living marine biota,oceansdissolved inorganic carbon The sediments including fossil fuelssedimentsfossil fuels

Phosphorous Cycle Describes the movement of phosphorus through the lithosphere, hydrosphere, and biosphere.phosphoruslithospherehydrospherebiosphere Unlike many other biogeochemical cycles, the atmosphere does not play a significant role in the movements of phosphorus, because phosphorus and phosphorus-based compounds are usually solids at the typical ranges of temperature and pressure found on Earth. atmosphere

Natural Leaching

Human Impact

Phosphorus Cycle Movement of phosphorus from the environment to organisms and back