0
Green plant life.
Carbon dioxide in absorbed by green plant leaf. It undergoes photosynthesis in the plant; the oxygen is released back into the atmosphere and the carbon is retained in the plant as biomass.
It is part of the Carbon / Oxygen cycle.
lenpollock
Wiki User
∙ 14y agoour plants and trees
Add your answer:
Earn +20 pts
Was there oxygen in the early earths atmosphere?
yes
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 methane and oxygen?
Gasses found in Earths atmosphere.
What organisms produce about half of the earths oxygen?
trees
What produces most of the earths atmospheric oxygen?
Plant Photosynthesis
What is the major source of oxygen for the earths atmosphere is?
Plants
If Earths biosphere were younger we would have oxygen in the atmosphere?
Earths atmosphere dose have oxygen in it, without it we would all be dead we require oxygen to breathe.
Is earths core a source of earths magnetic field?
Yes.
What is the percentage of oxygen in earths air?
21% of the air is oxygen
What is the most aboundant element in earths atmosphere?
I! think the most aboundant element on earth should be oxygen, because it is the only source of life through which we breath in.
Elements in the earths crust?
is it oxygen
How much of the earths atmosphere is made up of nitrogen and oxygen?
The earths atmosphere is made up of 78% nitrogen and 21% oxygen
What is earths heat source?
The sun
How does the light reaction of photosynthesis affect the earths supply of oxygen?
Photosynthesis is the source of virtually all the free oxygen in the earth's atmosphere.
Is most of the earths atmosphere covered with oxygen?
no
What percent of earths atmosphere is oxygen?
97%
Does the ocean help with the earths oxygen?
Yes
