Question

what is the air made up and less than

Answer 1

Answer:

Air is mostly gas

• The air in Earth's atmosphere is made up of approximately 78 percent nitrogen and 21 percent oxygen. Air also has small amounts of lots of other gases, too, such as carbon dioxide, neon, and hydrogen.

Answer 2

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 particles that cause air pollution, such as the soot, smoke, and other pollutants from car exhaust and power plants. When there are too many particles in the air, it can be difficult for plants and animals to breathe