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)
Evaporation from the ocean
Plants. The largest single source of oxygen comes from the Taiga as far as I know.
The two processes that take place during the oxygen cycle would be cellular respiration and photosynthesis. The oxygen cycle is also known as the carbon cycle.
The water cycle.
Sun provides energy for earth's water cycle. It provides thermal energy for evaporation.
There are actually quite a few different cycles that will produce oxygen. Photosynthesis in plants is just one of these cycles.
the earth provides heat so that our planet is able to sustain life
respiration
the trees produce oxygen and balance the air cycle in the nature
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)
Algae provides much of the earth's oxygen and their skeletons (especially diatoms) build up to make certain limestone.
It is part of the Respiratory Cycle of most living things on Earth.
Evaporation from the ocean
Trees provide oxygen for us but it also provides it for water as well. Water is made up of Hydrogen and Oxygen. If we keep on cutting down trees (logging) it will effect thewater-cycle.
Hemoglobin present inside the RBCs provides oxygen to the tissues when the RBCs reach them via the capillaries