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Algae and later plants carried out photosynthesis, which uses sunlight to convert water and carbon dioxide into sugar and oxygen. This process removed carbon dioxide from the air and added oxygen. Additional carbon dioxide was removed and locked away in carbonate rocks such as limestone.

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Q: Why is there is so little carbon dioxide and more oxygen in Earth's atmosphere?
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How would earth be different without carbon dioxide in the atmosphere?

Humans would die of cold. A little carbon dioxide keeps the earth warm, through the greenhouse effect.


How did oxygen begin to accumulate in the atmosphere?

Algae and later plants used sunlight to convert water and carbon dioxide into carbohydrates and oxygen. Until about the middle of the Paleozoic oxygen went into the atmosphere faster than it could be removed.


Do arteries contain more oxygen or carbon dioxide than veins?

Arteries carry blood away from the heart and veins carry blood into the heart. Blood moving from the heart to the lungs through the pulmonary artery has less oxygen than blood moving from the lungs to the heart through the pulmonary vein, but most arteries carry oxygen-rich blood with little carbon dioxide, and most veins carry deoxygenated blood with carbon dioxide and other wastes.


Beneath this lake is a deadly amount of methane and carbon dioxide?

You're probably referring to three lakes in Central Africa, Lakes Nyos, Monoun, and Kivu. They periodically undergo what's called "lake overturn," also known scientifically as a limnic eruption. It's a rare set of circumstances: nearby volcanic activity, deep lakes, and an equitorial latitude. The nearby vulcanism means carbon dioxide (CO2) and methane (CH4) bubble up into the lakes' deepest regions. The CO2 dissolves in the water as a result of the increased pressure at that depth (CO2 won't dissolve in water near the surface.) The geographic location of the lakes means there isn't a lot of variance in temperature between seasons, so there's little convection current action going on in the lakes to mix things up. So, the carbon dioxide just accumulates down there, and something like a landslide or small earthquake can shake things up just enough to cause all that CO2 to erupt to the surface. This can cause locally destructive tsunamis, but even more deadly than that, the huge amount of carbon dioxide can blanket whole towns, suffocating people and animals. Carbon dioxide, at 44 grams/mole, is heavier than the mixture of air we breathe, so it doesn't disperse as quickly into the atmosphere. Limnic eruptions in this region have already proven deadly, and efforts are underway to try and "vent" excess CO2 from the lake bottoms before this happens again.


Which planet has little gravity and little atmosphere?

This depends on you definition of little. The best fit would probably be Mercury that has virtually no atmosphere and less than 40 % of Earth's gravity on the surface. (Until 2006 Pluto which has even less surface gravity was a planet as well but is now considered a dwarf planet)

Related questions

Which gases made up most of Earths early atmosphere?

mostly carbon dioxide with little or no oxygen.


Earths first atmosphere contained little to no?

Oxygen. Earth's early(first) atmosphere is believed to contain hydrogen cyanide, carbon dioxide, carbon monoxide, nitrogen, hydrogen sulfide, and water. but still it only had little to no oxygen.


What is in the atmosphere of Jupiter?

Jupiter is made of carbon dioxide gas and a little methane gas.


What is the quality of the atmosphere?

Jupiter is made up of carbon dioxide and little methane gas


Which planet has a dense atmosphere of carbon dioxide and very little surface activity?

Venus.


What is the quality of atmosphere on Jupiter?

Jupiter is made up of carbon dioxide and little methane gas


How would earth be different without carbon dioxide in the atmosphere?

Humans would die of cold. A little carbon dioxide keeps the earth warm, through the greenhouse effect.


What might decrease global atmospheric carbon dioxide?

There is no known way that humans can economically remove carbon dioxide from the atmosphere; all we can really do is reduce our emissions of carbon dioxide and slow down the rate at which atmospheric carbon dioxide levels are increasing. The surface waters of the ocean do absorb some carbon dioxide from the atmosphere as atmospheric carbon dioxide level increase, but there is little interchange betwen the warm upper ocean and the deep layers. However over a period of several thousand years, there is sufficient interchange to absorb large volumes of carbon dioxide, allowing the atmospheric concentration to return more or less to normal. Afforestation. Planting trees will remove carbon dioxide from the atmosphere.


How would the amount of the carbon dioxide in the atmosphere change if there were no plants and animal?

If there were no plants it is unlikely that there would be any atmosphere at all. Plants remove carbon dioxide (CO2) from the atmosphere and are a vital part of the carbon cycle. No plants would mean huge increases of greenhouse gases in the air and a runaway greenhouse effect. Animals on the other hand would make little or no difference to the levels of carbon in the atmosphere.


Is Venus' atmosphere mostly water?

Venus' atmosphere is made up mostly of carbon dioxide, it lacks oxygen, and it only has a little nitrogen. Carbon dioxide makes the atmosphere heavy, which makes the atmospheric pressure 90 times stronger than Earth's atmospheric pressure. The atmosphere of Venus is very hot and thick.


How many atmosphere in planet Venus'?

Venus is extremely dense atmosphere with mostly carbon dioxide and a little of nitrogen. this atmosphere is 93 times of the earth's atmosphere. Venus has thick cloud layer of sulpher dioxide which produce the rain of sulpheric acid. it is the night-mare indeed to be there.


Is marsThe thick atmosphere on this planet is primarily composed of carbon dioxide with sulfuric acid clouds?

Your thinking of Venus which does have a high Co2 atmosphere and sulphuric rain. Mars has very little atmosphere.