Keyword Analysis & Research: air


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What is air?

Full Definition of air (Entry 1 of 2) 1 a : the mixture of invisible odorless tasteless gases (such as nitrogen and oxygen) that surrounds the earth also : the equivalent mix of gases on another planet … the thin, frigid air of Mars. — Stefano S. Coledan

What are the characteristics of air?

Air is the Earth 's atmosphere. Air around us is a mixture of many gases and dust particles. It is the clear gas in which living things live and breathe. It has an indefinite shape and volume. It has no colour or smell. It has mass and weight, because it is matter. The weight of air creates atmospheric pressure.

Is air just gas?

Air isn’t just gas. While air is mostly gas, it also holds lots of tiny particles. These particles in the air are called aerosols. Some aerosols—like dust and pollen—are picked up naturally when the wind blows. But the air can also carry soot, smoke, and other particles from car exhaust and power plants.

What is air and why is it important?

AIR is making a five-year, $100M+ investment in behavioral and social science research and technical assistance to address the underlying causes of systemic inequities and increase opportunities for people and communities. AIR bridges knowledge and action to support the whole child and family.


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