Oxygen and energy
Answered already
Water, oxygen, sunlight
There are five major parts of the Earth's life support system. These include water, air, soil, rocks, and lastly, all living things.
The atmosphere,hydrosphere, cryosphere,biosphere,geosphere and pyscosphere.
the top soil of earth can support life
Earth
Trees, because they give off oxygen. Every organism (living thing) needs oxygen to breathe obviously.
The Geo-sphere is the sphere of the Earth where living things are found. This section of the Earth has the appropriate amount of gasses and sunlight to support life.
Energy from the sun makes earth warm enough to support life and growth
Destroying the ozone allows UV. These affect life on earth.
earth
Only Earth.