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The percentage of oxygen in the atmosphere is 20.75%. The atmosphere has many other elements that we breathe in besides oxygen. Oxygen needs to be present for life on earth.
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∙ 11y ago
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What is air around us made of?
Oxygen and Carbon Dioxide
How can you keep the oxygen level constant in the air?
It is because there is a lot of trees around us and it gives out oxygen for us during photosynthesis.
Why is oxygen odorless?
Air is 21% oxygen. It is always around us. It would be pointless to be able to smell it, so our noses are not adapted to smell it.
Which gas makes up just over 20 percent of the air around us?
This gas is oxygen.
What type of mixture is the air around you?
Air is mainly Nitrogen and Oxygen in the ratio 4 to 1. There are traces of Carbon Dioxide, Water Vapour and other gasses,
Percentage of how many gases are there?
In the air around us there is 78% nitrogen 21% oxygen 1% other gasses
What is the air around us?
A mixture of nitrogen and oxygen, mostly.
What is air around us made of?
Oxygen and Carbon Dioxide
Is it true the air around us has only oxygen in it?
No of course
How can you keep the oxygen level constant in the air?
It is because there is a lot of trees around us and it gives out oxygen for us during photosynthesis.
From where does the blood get oxygen?
The blood gets oxygen from the air around us which is made of oxygen. When we breath in, the oxygen is taken into our lungs and then into our blood.
What is the meaning of air around us?
The air around us help us to breath it carries to the gas that we need but it can also carry bad gases but that is unlikely. the gas we need are oxygen,nitrogen and carbon dioxide.
Why is air pollution negative?
because we breathe in the oxygen which is flowing around this earth and when we breathe in this oxygen around us ,we also breathe in air pollution which is not good for all things living on this planet.
Is oxygen a natural element?
Yes. Oxygen is a natural element. It exists in gaseous form as a part of the air around us.
The gases oxygen and nitrogen are elements in what?
AirThe air around us is about 21% Oxygen, about 78% Nitrogen and about 1% Argon.
Is air around as pure what reason?
air around us is not pure because in air so many gases are mixed like nitrogen , oxygen , carbon etc.
How is air around us?
Well it's less dense and plants keep the oxygen coming.
