Air, the "living gas" we breathe every day, is layered on the surface of the earth, transparent, colorless and odorless. It is mainly composed of nitrogen and oxygen, and has an important impact on human survival and production.
Air, the "gas of life" that we breathe every day, is layered over the earth's surface, transparent and colorless, and consists mainly of nitrogen and oxygen, which has an important impact on human survival and production.
Air, the "life gas" that we breathe every day, covers the surface of the earth in layers, transparent, colorless and tasteless. It is mainly composed of nitrogen and oxygen, which has an important impact on human survival and production.