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well animals such as humans and dogs breath in oxegen while breathing out Co2 the plants/trees take in Co2 then taking out Oxegen so its like a cycle

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Q: How does the oxygen in the air being replaced?
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How is oxygen in air replaced?

As the third most abundant element, oxygen in the air is made by plants and algae.


Why is compressed oxygen used instead of compressed air in space?

Oxygen is the component of air that we consume, so it must be continuously replaced as the astronauts breathe it. The the other components of air, mostly nitrogen, simply come from the initial air supply and do not need to be replaced.


What does an oxygen meter measure?

An oxygen meter measures the percentage of oxygen in the air being tested.


What is replaced as quickly as it is used?

Nonrenewable natural resources are being used faster than they are being replaced.


What is rising warm air being replaced by cool air?

I believe this is what causes wind and air currents.


How carbon dioxide control fire?

3 elements are needed for a fire: fuel, oxygen (air), and heat. The carbon dioxide is used to displace the oxygen being used in a fire. Since fire has no more oxygen available because it is replaced by the carbon dioxide, the fire will go out.


What type of hazard occurs when the oxygen occurs when air or blood is replaced by a different substance denying living organisms the oxygen they need?

asphyxiationasphyxiation


What type of hazard occures when the oxygen in the air or blood is replaced by a different substance denying living organisms the oxygen they need?

asphyxiationasphyxiation


Is oxygen part of the air?

No. Oxygen is an element that typically comes in the form of O2. Air is a mixture of gasses and Oxygen is just one of them. Air is about 21% oxygen and 78% nitrogen with another 1% being a variety of other gasses.


What useful substance in the air do human being used?

oxygen


How can carbon dioxide be removed from the air and replaced by oxygen gas in submarine?

They use a 'gas exchange system' - usually chemicals that split the carbon dioxide molecules into atoms of oxygen and carbon. The oxygen is recycled back into the air in the submarine, and the carbon is retained for disposal.


If both the idler air sensor and the oxygen sensor shows malfunctioning which should be replaced first on a ford contour 95?

First, change the oxygen sensor and the air filter. Clear the codes and see if the idler air sensor code comes back.