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Plants photosynthesise to produce oxygen. They also act as a carbon sink.
I suppose the largest source of oxygen on Earth is the Amazon forest in South America. Amazon forest is five and a half million square kilometers (1.4 billion acres) big. It is currently the world's most important carbon sink.
The Amazon forest is estimated to produce 20% of the world's oxygen supply, excluding all the other plants (e.g. grass).
For that, I suppose this is the largest source of oxygen on our planet.
Wiki User
∙ 13y ago
Wiki User
∙ 13y agoThe primal source is water, and plants split the hydrogen from the oxygen in the process of photosynthesis.
Wiki User
∙ 13y agoA large portion and mostly all of the oxygen found on earth comes from plants, trees, shrubbery.. ETC.
Wiki User
∙ 13y agoAlgae
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What is the major source of free oxygen in atmosphere?
Green Plants
What are the 4 major components of the earths atmosphere?
Nitrogen, Oxygen, Carbon Dioxide, and Water Vapor
What are earths four major sheres?
hydrosphere, atmosphere, biosphere, and geosphere
What are he two main components of the atmosphere?
The two major components of the earth's atmosphere are nitrogen and oxygen. There is also trace amounts of hydrogen, carbon dioxide, and other gases.
What caused a major change in the composition of Earths atmosphere?
The appearance of photosynthetic organisms
What is the major source of oxygen for the earths atmosphere is?
Plants
What was the major contributor of oxygen to earths early atmosphere?
photosynthsis
Which atmosphere gas is photosynthesis the major source of?
oxygen
What is the major source of free oxygen in atmosphere?
Green Plants
Why are the major gases that make up earths atmosphere?
Nitrogen, Oxygen and Argon make up 99% of the atmosphere
What are the 4 major components of the earths atmosphere?
Nitrogen, Oxygen, Carbon Dioxide, and Water Vapor
WHAT is the major source of energy for earths system?
The sun is the major external source of energy.
Is the atmosphere the major storage area for earths water?
The atmosphere is ONE OF the major storage areas for Earth's waters
Why do people believe that preservation of the Amazon rain forest is a global concern?
People think it is a major concern mainly because it "IS" a major concern for those of us who would like to keep breathing the oxygen in earths atmosphere, and for those who would like their grand children to have free oxygen available via the earths biosphere.
What are earths four major sheres?
hydrosphere, atmosphere, biosphere, and geosphere
What is the major atmosphere by-product of photosynthesis?
Oxygen -Sabrina (:
Which is the major source of energy for most earths processes?
the sun
