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2.2 Billion years ago Photosynthetic bacteria in the ocean began churning out oxygen as a result of photosynthesis. Then, oxygen gas started accumulating in the atmosphere.

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Where does the free oxygen in Earths atmosphere come from?

The free oxygen in Earth's atmosphere primarily comes from the process of photosynthesis carried out by plants, algae, and certain bacteria. During photosynthesis, these organisms use energy from sunlight to convert carbon dioxide and water into oxygen and glucose.Approximately half of Earth's oxygen is produced by marine plants, specifically phytoplankton.


What is the major source of free oxygen in atmosphere?

Green Plants


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.


The primitive earth's atmosphere did not contain water vapor free nitrogen free hydrogen free oxygen inert gases?

The primitive earth's atmosphere contained mainly water vapor, carbon dioxide, nitrogen, and small amounts of other gases like methane and ammonia. It did not have free oxygen as it was produced later by photosynthetic organisms. Nitrogen and inert gases like argon were also present in the early atmosphere.


Does sodium nitrate burn in an oxygen free atmosphere?

No, sodium nitrate does not burn in an oxygen-free atmosphere because combustion requires oxygen to support the chemical reaction that produces heat and light. Without oxygen, there is no source for the combustion reaction to occur.

Related Questions

Where does the free oxygen it the atmosphere come form today?

It is produced by the photosynthesis of plant life.


Where does the free oxygen in Earths atmosphere come from?

The free oxygen in Earth's atmosphere primarily comes from the process of photosynthesis carried out by plants, algae, and certain bacteria. During photosynthesis, these organisms use energy from sunlight to convert carbon dioxide and water into oxygen and glucose.Approximately half of Earth's oxygen is produced by marine plants, specifically phytoplankton.


The primative earths atmosphere did not contain?

Free oxygen


Can you breathe Jupiter's atmosphere?

No. Jupiter's atmosphere is mostly hydrogen and helium with no free oxygen.


How much of the atmosphere of the is free of nitrogen?

32% the of the atmosphere is Argon, Oxygen and Other stuff


What is the major source of free oxygen in atmosphere?

Green Plants


What organisms contributed the most to the shift between an oxygen-free atmosphere to an oxygenated atmosphere?

The 'photosynthtics'


What organisms contribute the most to shift between an oxygen free atmosphere to an oxygenated atmosphere?

cyanobacteria


What organism contributed the most to the shift between an oxygen-free atmosphere to an oxygenated-atmosphere?

The 'photosynthtics'


What organisms contributed the most to the shift between an oxygen free atmosphere to an oxygenated atmosphere?

cyanobacteria


What is hypothesized to be the early source of free oxygen in Earth's atmosphere?

cyanobacteria


What can burn in an oxygen free atmosphere?

Many things. Titanium burns well in both oxygen and nitrogen.