Plants. The largest single source of oxygen comes from the Taiga as far as I know.
earth can sustain life because it has lots of oxygen and water
the water cycle
respiration
i do not know if you mean a specie or place. but i do know that plants provides the earth with oxygen. if you are looking for a place, then look at a place with the most plants. if you are looking for a specie, plants, provide the earth withoxygen (plants breathe in carbon dioxide and breathe out oxygen)
In order for earth to sustain life it has the magnetic field, plate tectonics, and active volcanoes.
earth can sustain life because it has lots of oxygen and water
water, Oxygen, CO 2 Minerals
earth is supposedly the only planet that can sustain life and has oxygen
Earth comprises of atmosphere. Air and water provides favorable conditions.
the earth provides heat so that our planet is able to sustain life
Because earth provides and helps sustain life. The ultimate nurturer, like a mother.
Apart from water, you need oxygen in the air to sustain life on earth. With these two indispensable features, both mankind,animals and botanical reserves sustain life on this planet.
the water cycle
The thick atmosphere has enough oxygen so than living things can happen.
respiration
Gravity provides the centripetal force to sustain orbits, F= mGM/r2
i do not know if you mean a specie or place. but i do know that plants provides the earth with oxygen. if you are looking for a place, then look at a place with the most plants. if you are looking for a specie, plants, provide the earth withoxygen (plants breathe in carbon dioxide and breathe out oxygen)