Natural resource of Class 9

Both non-living (a biotic) and living (biotic) components of the biosphere constantly interact with each other to form a dynamic, but stable system. The interactions include transfer of matter and energy between the different components of the biosphere.

The nutrient elements derived from the Earth by the living organisms for use in their growth and metabolism are called biogeochemical.

These are continuously recycled.

The movement of nutrient elements through the living and non-living components of the biosphere or any other ecosystem, is called biogeochemical cycle or cycle of matter.

Generalized model of nutrient cycling in an ecosystem


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