The earth actually consists of three abiotic physical systems, these are:
1. the atmosphere
This contains all of the gases that act as a cover to the surface of the earth
2. the hydrosphere
This contains all of the water that is found on or inside the earth; including sea water, fresh water, glacial water, ground water, etc.
3. the lithosphere
The lithosphere refers to the outer, hard parts of the earth which consist of the crust and the mantle
