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From plant life.
Animals including humans exhale carbon dioxide.
Carbon dioxide is a heavy gas and fall to the ground.
Whereupon it is absorbed by plant life.
Under the process of photosynthesis, carbon dioxide in the plant is broken down into carbon and oxygen.
The carbon is retained in the plant as biomass, and the oxygen is released back into the atmosphere, for animals to breathe.
It is all part of the oxygen/carbon cycle.
What else can I help you with?
What gives us most of our oxygen in the atmosphere?
Most of the oxygen in Earth's atmosphere comes from photosynthesis carried out by plants, algae, and cyanobacteria. These organisms utilize sunlight to convert carbon dioxide into oxygen during this process.
Where is most of the oxygen in the atmosphere from?
It is produced by photosynthesis in plants.
Do trees provide the most oxygen for the atmosphere?
While trees play a significant role in producing oxygen, they are not the sole source. Phytoplankton, algae, and other plants also contribute to oxygen production in the atmosphere through photosynthesis. Overall, terrestrial and aquatic ecosystems collectively contribute to the oxygen balance in the atmosphere.
What are the 2 most important elements in the atmosphere?
The most important elements in the Earth's atmosphere are N (nitrogen) and O (oxygen).
Which process releases most of the oxygen you have in your atmosphere?
Photosynthesis is the process that releases most of the oxygen in the Earth's atmosphere. During photosynthesis, plants and other organisms use sunlight to convert carbon dioxide and water into glucose and oxygen. This process is essential for maintaining the balance of oxygen and carbon dioxide in the atmosphere.
Does air come from the sun?
No. Earth's atmosphere most likely originate from volcanic atmosphere. The oxygen is produced by plants.
The most abundant gases are nitrogen and?
The most abundant gases are nitrogen and oxygen in the Earth atmosphere.
What layer of atmosphere holds oxygen in earth?
the layer of the atmosphere that holds oxygen is the troposphere and its pause is tropopause
Why is the atmosphere classed as an oxygen atmosphere?
Earth's atmosphere is mainly nitrogen, oxygen, carbon dioxide, and water vapor. Oxygen is the most reactive of these. Oxygen allows all of the life as we know it on earth. Even though oxygen is less than 1/4 of the atmosphere it is the most important part.
What gives us most of our oxygen in the atmosphere?
Most of the oxygen in Earth's atmosphere comes from photosynthesis carried out by plants, algae, and cyanobacteria. These organisms utilize sunlight to convert carbon dioxide into oxygen during this process.
What is the second most abundant gas found in the atmosphere?
The second most abundant gas in the Earth's atmosphere is oxygen, which makes up about 21% of the gases in the atmosphere.
What has the most oxygen in it?
The oxygen molecule, the form of oxygen found in the Earth's atmosphere, is 100% oxygen. There fore it is the material that has the most oxygen in it.
What is the second most abundant gas in the Earth's atmosphere?
Oxygen
What is the most of the oxygen that is found in the atmosphere today?
The most of the oxygen in the Earth's atmosphere today comes from photosynthesis by plants and other photosynthetic organisms. They convert carbon dioxide into oxygen as a byproduct, which accounts for approximately 20.95% of the atmosphere.
What are the two most common gases in atmosphere?
Nitrogen & Oxygen.
Is most of the earths atmosphere covered with oxygen?
no
Where did the oxygen in Earth's atmosphere come from originally?
The oxygen in Earth's atmosphere originally comes from the process of photosynthesis carried out by early photosynthetic organisms like cyanobacteria, which released oxygen as a byproduct. Over time, the accumulation of oxygen led to the development of an oxygen-rich atmosphere.
