what is air?????????
Answers
Answer:
Air is the general name for the mixture of gases that makes up the Earth's atmosphere. This gas is primarily nitrogen (78%), mixed with oxygen (21%), water vapor (variable), argon (0.9%), carbon dioxide (0.04%), and trace gases. Pure air has no discernible scent and no color. Air typically contains dust, pollen, and spores; other contaminants are referred to as "air pollution." On another planet—Mars, for example—the so-called air would have a different composition since there is technically no air in space
the mixture of gases that surrounds the earth and that people, animals and plants breathe.
the space around and above things.
to put clothes, etc. in a warm place or outside in the fresh air to make sure they are completely dry; to become dry in this way.
to make a room, etc. fresh by letting air into it; to become fresh in this way.
Air is the general name for the mixture of gases that makes up the Earth's atmosphere. This gas is primarily nitrogen (78%), mixed with oxygen (21%), water vapor (variable), argon (0.9%), carbon dioxide (0.04%), and trace gases. Pure air has no discernible scent and no color.
A mixture of various gases such as nitrogen, oxygen, carbon dioxide, water vapour and a few other gases is called air. Air may contain some dust particles and oxygen present in the air to support burning. Air is necessary for the survival of living organisms including plants, animals and microorganisms.
Air is the invisible mixture of gases that surrounds the Earth. Air contains important substances, such as oxygen and nitrogen, that most species need to survive.