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Nutrient Cycling
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.
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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 d...
- Carbon is the backbone element of all organic polymers, and we are ourselves known to be carbon-based life forms.
- The movement of CO2 and other carbon compounds through biological components is known as the fast carbon cycle.
- The abiotic components like rocks, soil and oc...
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 ...
- Removal of CO2 from the atmosphere by plants and bacteria.
- Generation of organic molecules, and building of biological mass in plants.
- Consumption of plants by animals.
- Respiration of animals restoring the CO2 in the atmosphere.
- Dead and decaying organic ...
- Nitrogen (N2) is converted in ammonia (NH3) by bacteria in water and soil, and subsequently converted into nitrite and its derivatives.
- Plants get nitrogen from the soil through the roots, producing organic compounds.
- Animals absorb nitrogen by eating the plants.
- ...
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Photosynthesis is a way to store stable energy.
Ancient bacteria used a thermal-sensing pigment called bacteriochlorophyll to detect the infrared signal generated by heat. These bacteria were the progenitors of descendants that could make chlorophyll. This pigmen...
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Ice provides most of the world's fresh water supply, keeps sea levels from rising dangerously, and gives us important information about past and future climate.
Ice on Earth is named cryosphere - the frozen water part of the Earth system. It includes all types of frozen wat...
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Oxygen is atomic number 8 with the element symbol O. It was discovered by Carl Wilhelm Scheele in 1773, but he did not publish his work immediately, so credit is often given to Joseph Priestly in 1774.
Oxygen is one of the best-known gases on the planet, largely because it...
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