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Air contains only about 60% oxygen. When someone is having difficulty breathing, there is ususally a heart or lung condition. As the heart pumps, it allows for and exchange of co2 and o2. When there is a dysfunction, the person cannot pull out all of the o2 from the air and need 100% o2 in order to have levels that are able to sustain life.
Wiki User
∙ 15y ago
Wiki User
∙ 14y agoOxygen in a tank is 100% oxygen. Air is only a small percent oxygen
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John Smith is a person All people need to breathe oxygen John Smith needs to breathe oxygen?
Deduction
Why would a sleeping person breathe less than when awake?
When you are asleep your body is not doing a great deal and as a result needs less oxygen and therefore needs to breathe less.
Which of the options below best describes the following series of statements John Smith is a person All people need to breathe oxygen John Smith needs to breathe oxygen?
causation
Which of the options below best describes the following series of statements John Smith is a person. All people need to breathe oxygen. John Smith needs to breathe oxygen.?
causation
What is a sentence using the word oxygen?
My mother needs to use her oxygen tank to breathe.
Why do you breathe faster after exercising?
You breathe faster after exercising as your body needs to remove all the waste products it has produced - carbon dioxide and water.
When you exercise your body needs more so you breathe faster?
oxygen
Does fire need air to breathe?
Fire needs oxygen to burn.
Why oxygen is important to your lives?
Oxygen is what you breathe in, and what your body needs to function correctly (and what you need to survive actually)
Where does the oxygen your body needs come from?
Plants produce oxygen through photosynthesis and release it into the atmosphere where we can breathe it.
Why do you breathe faster after excersise?
Your body needs more oxygen after and during exercise.
Why we breathe more quickly when we exercise?
We breathe faster when we exercise to increase the amount of oxygen available to our bodies.
