Abiotic : Non-living thing. Usually refers to the physical and chemical components
of an organism’s environment.
The environment as you know, is made up of abiotic and biotic components.The balance between abiotic and biotic components is maintained in a particular proportion so that a healthy interaction between the biotic and the abiotic components goes on.
The interactions of a particular group of organisms with abiotic factors within a particular habitat resulting in clearly defined energy flows and material cycles on land, water and air, are called ecological systems.