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Around when the planet was cool enough for liquid water, life was supposedly first formed small photosynthetic bacteria took in the CO2 the early earth was releasing to form oxygen. Cera several hundred million years to a billion years later, the earth had accumilated around the same amount of oxygen the earth has now. It has remained fairly close to this level by both multicellular plants and single celled photosynthtic bacteria.
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∙ 12y ago
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What types of organisms remove oxygen from the atmosphere?
Animals remove oxygen from the atmosphere.
What percent of the Martian atmosphere is oxygen?
Mars' atmosphere contains 0.13% oxygen. Over 95% of the atmosphere on Mars is carbon dioxide.
Could you survive on Earth without the atmosphere?
No, because the atmosphere keeps in all the oxygen. Without the atmosphere the oxygen would escape.
What 2 gases are most abundant in the Earth's atmosphere?
Nitrogen and Oxygen
What gas in our atmosphere promotes combustion?
Oxygen
Today's atmosphere is full of nitrogen and oxygen These are?
gasses
Is there oxygen on Venus if so what percent?
There is no oxygen on Venus as the atmosphere is almost full of carbon dioxide.
How did oxygen become to be 21 percent of Earth's atmosphere?
Since 79% of earth's atmosphere is all living and non living things. The remainder of that which is 21% would be oxygen.
What percent of the atmosphere is oxygen'?
21% of the atmosphere is oxygen.
What is the oxygen content of the atmosphere?
The atmosphere is 79.9% oxygen.
How did oxygen become a part of the earths atmosphere and what did this increase in oxygen levels allow?
The oxygen in the atmosphere is the O-Zone which is O3 (Oxygen 3) because of plant life oxygen had increased via photosynthesis, the incease just allowed the ozone to thicken, but sadly due to CFC there are large holes
What is an aerobic atmosphere?
the environment which has the availability of oxygen it is called aerobic atmosphere and if the availability of oxygen is not there in atmosphere then it is anaerobic type We live in a aerobic atmosphere which has the oxygen available
Is there oxygen in Mercury?
No, there is no oxygen in Mercury's atmosphere because Mercury does not have an atmosphere.
Why doesnt the moon have oxygen?
The moon has no oxygen because it has no atmosphere.
How did the earths atmosphere change composition to become todays nitrogen and oxygen atmosphere?
your question is... How did the Earth`s atmosphere change composotion to became today`s nitrogen and oxygen atmosphere? Answer: it happend with the help of solar untraviolet (uv) radiation,the very thing what we worry about now for its cancer-causing ability
Is the atmosphere partly oxygen?
Yes, oxygen makes up 20.9% of the atmosphere.
What makes molecular oxygen in our atmosphere?
Cyanobacteria make molecular oxygen in our atmosphere.
