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Where did the oxygen in Earth's atmosphere come from originally?
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Where does the free oxygen in Earths atmosphere come from?
The free oxygen bubbled up from the oceans.
What was Earths first atmosphere was created by?
The earths first atmosphere was created by the methane, carbon dioxide, sulphur oxides and water vapor that volcanoes were pumping out. Oxygen started to come in noticeable quantities once life had formed. Nitrogen is inert, so doesn't do anything.
Where did oxygen originally come from?
Cyanobacteria
How did free oxygen come about in the atmosphere?
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.
Where does the oxygen in earths atmosphere come from?
The origin of oxygen (and other large elements) is from supernovae. On the smaller scale, the vast majority of our oxygen comes from ocean plants, from tiny algae to giant kelp. The atmospheric oxygen comes from the decomposition of water and carbon dioxide by organisms that use photosynthesis to make useful molecules in combination with the energy from sun light.
Where does the free oxygen in Earths atmosphere come from?
The free oxygen bubbled up from the oceans.
Where does earths atmosphere come from?
Plants
Where do these main gases come from?
they come from earths atmosphere and gases
Where did the gases in the earths atmosphere come from?
Scientist theorize that bacteria with chlorophyll in them slowly but surely began to multiply. And as they did, they photosynthesized enough to create an entire atmosphere. (as you know oxygen is a byproduct of photosynthesis)
What was Earths first atmosphere was created by?
The earths first atmosphere was created by the methane, carbon dioxide, sulphur oxides and water vapor that volcanoes were pumping out. Oxygen started to come in noticeable quantities once life had formed. Nitrogen is inert, so doesn't do anything.
Where did oxygen originally come from?
Cyanobacteria
What do we call pieces of stone that come into the earths atmosphere?
It is a meteorite (meteor).
Where do most of the objects you use in your life originally come from?
From the earths crust
Where do most of the objects you use in you life originally come from?
From the earths crust
Where do the oxygen atoms in the CO2 come from?
The oxygen most often comes from the atmosphere which is 21% oxygen.
Can asteroids come in earths atmosphere?
Yes. Asteroids can enter earth's atmosphere. In such an event the asteroid will probably strike earth's surface.
Where does oxygen in water come from?
Water molecules are formed by the reaction between hydrogen and oxygen.
