Question

What is bio geo chemical cycles?

Answer 1

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In ecology and Earth science, a biogeochemical cycle or substance turnover or cycling of substances is a pathway by which a chemical substance moves through biotic and abiotic compartments of Earth.
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Answer 2

A biogeochemical cycle or an inorganic-organic cycle is a circulating or repeatable pathway by which either a chemical element or a molecule moves through both biotic (biosphere) and abiotic (lithosphere, atmosphere and hydrosphere) components of an ecosystem.

Let us try to understand this definition. Firstly let us understand that the Earth only receives energy from the Sun, all other elements on Earth remain within a closed system. These chemicals, however, are the building blocks of life, they are the raw materials all living organisms use as nutrients to produce energy. These chemicals are called biogeochemicals. Some of the main elements that are in a cyclic pattern are Carbon, Oxygen, Hydrogen, Nitrogen, Phosphorous, Sulphur and Water. 

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