It surrounds us during our entire lives, and we breathe it in and out from our first to our last moment. Without it, there would be no life on our planet. We are talking about one of the four elements, air. The air combines gases that make up the earth’s atmosphere. Dry air is mainly composed of two gases: Nitrogen (N2) is the primary air component at 78.08 percent. At 20.92 percent, oxygen (O2) is the second most crucial component.
Furthermore, air contains noble gases (0.93 percent in total), mainly argon, as well as helium, neon, krypton and xenon. In addition, carbon dioxide (CO2) makes up 0.037 percent, and is one of the main air components due to its importance for living organisms and the climate. The air also includes methane, hydrogen, nitrous oxide (laughing gas) and carbon monoxide. In this article of Gazettely, we will tell you nine interesting things about the air that you probably don’t know.
A 70-kg man inhales 6 liters of it per minute. While babies up to 6 months make 30/60 inhalations per minute, babies from 6 to 12 months reach 24/30. For children from 1 to 5 years old, the breaths are between 20 and 30 per minute. From 6 to 12 years of age, it reaches between 12 and 20. There are about 300 million alveoli in the lungs, and they have a total exchange surface area of between 70 and 100 m².