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What is the importance of different biogeochemical cycles in the nature? (ASI )

What is the importance of different biogeochemical cycles in the nature? (ASI )

Grade:8

2 Answers

Vikas TU
14149 Points
10 months ago
Dear student 
These cycles help in an efficient recycling of useful minerals like- nitrogen, phosphorus, carbon through various biotic and abiotic pathways and also helps in the steady flow of minerals to every part of an ecosystem.
Vikas Amritiya
askIITians Faculty 158 Points
10 months ago

 

  • Biogeochemical cycles are important because they regulate the elements necessary for life on Earth by cycling them through the biological and physical aspects of the world. Biogeochemical cycles are a form of natural recycling that allows the continuous survival of ecosystems.
 
  • Biogeochemical cycles are named for the cycling of biological, geological and chemical elements through Earth and its atmosphere. The cycles move substances through the biosphere, lithosphere, atmosphere and hydrosphere. Cycles are gaseous and sedimentary. Gaseous cycles include nitrogen, oxygen, carbon and water. These elements cycle through evaporation, absorption by plants and dispersion by wind. Sedimentary cycles include the leeching of minerals and salts from the Earth's crust, which then settle as sediment or rock before the cycle repeats.
 
  • Repetition of the cycles is important. Plants absorb carbon dioxide and release oxygen, making the air breathable. Plants also acquire nutrients from sediment. Animals acquire nutrients from plants and other animals, and the death of plants and animals returns these nutrients to the sediment as they decay. The cycle then repeats and allows other living things to benefit.
 
  • The simplest example of biogeochemical cycles at work includes water. Water evaporates from the oceans, condenses as clouds and precipitates as rain, which returns the water back to the earth in a cycle.

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