Answer :
BIO GEO CHEMICAL CYCLES-A CONSTANT INTERACTION BETWEEN THE BIOTIC AND ABIOTIC COMPONENTS OF THE BIOSPHERE MAKES BIO GEO CHEMICAL CYCLES
Water cycle
Evaporation of water >>>condensation >>>> precipitation >>>>evaporation
Nitrogen cycle
Atmospheric nitrogen is being fixed biologically , industrially and by lightning ......
There is absorption of nitrogen by the plant in the form of nitrites and nitrates and now when plants and animals die .....is mixed in the soil nitrogen pool and there are denitrifying bacteria which reverse the process ...