BIO GEOCHEMICAL CYCLES
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
- COMPONENTS OF EARTH
- WATER A WONDER LIQUID
- FORMATION OF SOIL
- THE WATER-CYCLE OR HYDROLOGICAL CYCLE
- AIR OR ATMOSPHERE:
- THE MOVEMENT OF AIR WIND
- SEA BREEZE AND LAND BREEZE
- MINERAL RICHES IN THE SOIL
- BIO GEOCHEMICAL CYCLES
- GLOBAL WARMING (GREEN HOUSE EFFECT)
- solved question
- Exercise 1
- Exercise 2(Natural resource )
- Exercise 3 (Fill in the blanks) (Natural resource )
- Exercise 4(True -False)