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Air is a mixture because the Elemental Gases in it have not chemically reacted with each other. They can be separated by mechanical means rather than by chemical reactions. That is the Definition of a Mixture.
Wiki User
∙ 10y ago
Wiki User
∙ 13y agofor one: the natural ecosystem. Photosynthesis: plants, trees etc producing oxygen for us.
then you've got all the man made stuff
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Does nitrogen make up about 50 percent of the air around us?
No, it actually makes up around 80% of the air around us.
All of the air around us makes up what earth sphere?
The atmosphere.
Which gas makes up just over 20 percent of the air around us?
This gas is oxygen.
How does the air around us moves?
how does the air around us moves?
How does heat affect the air around us?
It makes oxygen scarce just as it does to water. The humidity becomes higher.
Why does the amount of air around us have to be greater than the amount of air in us?
The more air is in us the higher the preshure. If there was more air in us than around us we could explode howewer if there was too much air around us we would probably get squeezed.
What's around us?
there is air around us
Hot air makes hotairballoons do what?
Hot air makes a hot air balloon rise because hot air is less dense than the cooler air around it, so the hot air balloon floats on the cooler air around it.
What is it called when air presses on us?
air has mass
What makes us most of the exhaled air in vertebrates?
Carbon dioxide makes up most of the exhaled air in
How do we know there is air around us?
Air is not literally everywhere around us; it is not under the ocean or in outer space, for example. But in our normal lives, we are always surrounded by air. For most purposes, it is everywhere around us.
Is air around us pure or not?
no
