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Oxygen is produced by other oranisms, including plant life. Although it may seem odd we don't run out of air when there's so many creatures breathing, think of all the plants that are taking our carbon dioxide and giving us oxygen! It's a cycle.

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13y ago
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16y ago

Actually it does. Well, sort of. The gravitational pull of the Earth draws air molecules towards its centre. That is why the air gets thinner as altitude increases.

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9y ago

We breathe out carbon dioxide that the plants breathe. The plants turn the carbon dioxide into oxygen which we can breathe in and turn into carbon dioxide again.

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13y ago

The force of gravity pulling the oxygen towards the earth is greater than the outwards movement of the atoms.

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14y ago

Same reason as why we don't go floating into space - our atmosphere is held by the earth's gravity.

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13y ago

Air stays, because the gravity of the earth keeps in on the earth

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Q: Why doesn't the earth run out of oxygen?
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Related questions

Does the earth and moon have atmosphere?

Obviously the Earth has an atmosphere, and the moon also has one, although it is weaker and does not contain oxygen.


Does a car engine need oxygen to run?

yes. In order for the engine to run, it needs both O2 and gas. If it doesnt get one or the other, it wont run


Why doesnt the earth run out of fresh water?

A relatively thin band of gasses surrounds Earth. This is the atmosphere. 78% of Earth's atmosphere is Nitrogen and 21% is Oxygen. The remaining 1%, known as "trace gases", consists of argon, CO2, water vapor, hydrogen, helium, methane, neon, etc.


Will we ever run out of oxygen?

It is unlikely the Earth will run out of oxygen as long as there is an adequate amount of plant life and animals. Animals produce oxygen from the CO2 animals emit and vice versa.


Why doesn't the earth run out of freshwater?

It doesnt run out of water because this whole earth is surrounded by water and when the water drains, it rains to full up again so therefore we should never run out of water


Can earth run out of oxygen?

If we cut down all the tree's it could. Tree's recycle carbon dioxide and turn it into oxygen.


Why hasn't all the oxygen on earth ran out?

Oxygen on earth has not run out because green plants release oxygen into the air by a process called photosynthesis. Photosynthesis offsets oxygen consumption by other processes such as respiration, combustion, oxidation, etc. This is why protecting greenspaces is vital; without them the earth's oxygen would eventually be depleted.


How does oxygen affect decay?

it doesnt


If no new oxygen was generated how long would it take for Earth to run out of breathable air?

1 year


Why doesnt the moon have oxygen?

The moon has no oxygen because it has no atmosphere.


Does pee run up hill?

no it doesnt even run because it doesnt have legs HAHA!! :)


Effects of no oxygen on earth?

Oxygen is main gas of earth. If there is no oxygen in the earth all the life in the earth should die.