Tamilnadu BoardEnglish MediumSTD 12BIO BOTANYEcosystem.3 Marks
Question
What is biogeochemical cycle? Explain its types.
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Answer
Circulation of nutrients within the ecosystem or biosphere is known as biogeochemical cycles and also called as cycling of materials. There are two basic types:
Gaseous cycle – It includes atmospheric Oxygen, Carbon and Nitrogen cycles.
Sedimentary cycle – It includes the cycles of Phosphorus, Sulphur and Calcium – Which are present as sediments of Earth.
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