The Atmosphere

Air and Air Pressure

Are the gases in the atmosphere evenly distributed

You are not likely to stroll down a street and encounter a suddenly high concentration of oxygen or a pocket of unmixed argon gas. The constant motion of the weather due to fronts, pressure changes, varying temperatures, storms, and so on, is like putting the atmosphere in a food processor and hitting the “blend” button, and never turning it off. The percentage of each gas, therefore, will be constant anywhere below an elevation of 50 or 60 miles (80 to 95 kilometers).


This is a web preview of the "The Handy Weather Answer Book" app. Many features only work on your mobile device. If you like what you see, we hope you will consider buying. Get the App