Biosphere:- the combination of animal,plant and non-living being make the planet earth by their interaction known as biosphere.
biotic components:- living things constitute the biotic components of the biosphere.
abiotic components:-the air,water and soil from the non-living biotic components of the biosphere.air is called hygrosphere and water is known as hydrosphere.
air:- air is a mixture of many gases oxygen,carbon dioxide,nitrogen and water vapour.
carbon dioxide fixation:- green plants converts carbon dioxide into glucose in the presence of sunlight.