what are biogeochemical cycles?
explain with proper definition.
Answers
Biogeochemical Cycle Definition
A biogeochemical cycle is one of several natural cycles, in which conserved matter moves through the biotic and abiotic parts of an ecosystem.
In biology, conserved matter refers to the finite amount of matter, in the form of atoms, that is present within the Earth. Since, according to the Law of Conservation of Mass, matter cannot be created or destroyed, all atoms of matter are cycled through Earth’s systems albeit in various forms.
In other words, the Earth only receives energy from the sun, which is given off as heat, whilst all other chemical elements remain within a closed system.
The main chemical elements that are cycled are: carbon (C), hydrogen (H), nitrogen (N), oxygen (O), phosphorous (P) and sulfur (S). These are the building blocks of life, and are used for essential processes, such as metabolism, the formation of amino acids, cell respiration and the building of tissues.
These fundamental elements can be easily remembered with the acronym CHNOPS.
Each of these elements is circulated through the biotic components, which are the living parts of an ecosystem, and the abiotic components, which are the non-living parts.
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