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The planet’s ecosystem has many cycles, like the water cycle or the seasonal cycle, and one of the most important ones is the nutrient cycle. This is a biogeochemical cycle involving both living and nonliving components, describing the use, movement, and recycling of nutrients in the environment.
The various global and local cycles of nutrients involve valuable elements like oxygen, carbon, hydrogen, nitrogen and phosphorus.
Nitrogen is an essential component of biological molecules like amino and nucleic acids, but most living organisms cannot use the element in its pure form and need a derivative component, NH3(ammonia) to be able to synthesize organic components.
Photosynthesis in plants takes care of the production of most of the oxygen.
Plants make use of sunlight, water and carbon dioxide to produce glucose and oxygen, which is used by animals(respiration and consumption of plants). Oxygen is then removed from the atmosphere by the process of decomposition.
A component of certain biological molecules like phospholipids, DNA and adenosine triphosphate (ATP), phosphorus is circulated in the environment through the soil, water rocks and living organisms.
It is found organically as phosphate ion and is added to the soil and water through natural weathering of rocks. It is absorbed from the soil by plants, which are in turn consumed by animals, getting back into the soil by the process of decomposition.
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