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trees. Trees produce oxygen and in return we give them Co2 (carbon dioxide).
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What is the major source of free oxygen in atmosphere?
Green Plants
What is inferred to be the main source of the free oxygen that first entered earth?
oxygen producing organisms
What is hypothesized to be the early source of free oxygen in Earth's atmosphere?
cyanobacteria
What is inferred to be the main source of the free oxygen that first entered earth's atmosphere?
oxygen producing organisms
Hypothesized to be the early source of free oxygen in Earth's atmosphere?
photosynthesis by cyanobacteria
Why was oxygen absent from earth's early atmosphere?
Oxygen is an extremely chemically active element, which is why things can burn in our current atmosphere. In the early Earth, all the oxygen had reacted with other chemicals in the environment, so that there was no free oxygen. Only later, when photosynthesis was used by green plants, was there a source of free oxygen.
Which group of organisms is the source of oxygen in the oxygen cycle?
Producers is the group of organism that is a source in the oxygen cycle.
What is the source of oxygen in photosynthesis in plants?
Water is the source of oxygen in photosynthesis.
Are Diatoms important source of oxygen?
Yes they are; diatoms are the main source of oxygen in the universe.
What molecule is the source of oxygen?
oxygen is a molecule
What is the source of oxygen that is released by a photosynthesis during the light reactions?
The source of Oxygen is the Carbondioxide in the air.
What is the source of oxygen in home treatment?
In the home, the oxygen source is usually a canister or air compressor.
